I don't understand this question can someone help me with this please, please explain If u dont know try your best. Please do it quick, please do all :D

LCM = least common multiple

The lowest number that is a shared factor between the given values.

You use LCM for both of these problems.

For the first:

7: 7, 14, 21, 28…

14: 14, 28, 42…

The smallest shared multiple is 14, answer #1.

For the word problem, the same thing. Harry needs to buy enough supplies for there to be an equal 1:1 ratio of Pattie’s to buns.

So list out the factors:

12: 12, 24, 36, 48, 60, 72…

20: 20, 40, 60, 80, 100…

So the LCM would be 60, but there’s one more step to get the answer. You have to divide

# of patties per box/LCM(60)

and

# of buns per box/LCM(60)

So the problem stated there are 12 buns per package:

12 buns/60 = 5 packs of buns

And the patties:

20 patties/60 = 3 packs of patties

So they need to buy 5 packs of buns and 3 packs of patties, answer #3.

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: