The following is the distribution of weights (in kg) of 32 persons: Weight (in kg)

40-45

45-50

50-55

55-60

60-65

Number of

persons

4

4

13

6

5

a) What is the upper limit of 55-60?

b) Find the class-mark of the classes : 40-45, 50-55 and 60-65

PLS PLS PLS ANS. MY QUESTION I WILL MARK BRAINLIEST AND ALSO THANK WHOEVER ANSWERS ME.

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.

hey there! : )

4y < -4

we need to isolate y. we can do this by simply dividing both sides by 4.

4y ÷ 4 > -4 ÷ 4

simplify.

y > -1

5 - y > 0

once again, we need to isolate y, so we can start off by subtracting 5 from both sides.

5 - y - 5 > 0 - 5

simplify.

-y > -5

divide both sides by -1.

** remember that when dividing any side by a negative, you must switch the sign! **

-y ÷ -1 < -5 ÷ -1

simplify.

y < 5

~hope i ! ~