HELP PLEASE!! I WILL TRY AND GIVE BRAINLEIST TO THE MOST DETAILED ANSWER ON BOTH. INCOMPLETE ANSWERS WONT BE GIVEN BRAINLEIST. ALSO, DON'T USE GOOGLE. PLEASE! I'M IN NEED OF HELP.

100 x 38

Step-by-step explanation:

100

x 38

3800 < Is the product. It is bshown  lby...

The left side

Has been shaded green with 46 blocks.

The red is the same thing with 46 blocks.

The blue has eight blue blocks from the second side.

The second side:

This show's about 38 shaded blue blocks.

The white side doesn't.

I hope this helps! My brother helped me figure out this also.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

1/4 because there is 4 grades.