If y is 5 when x is 2.5 and y varies directly with x, find y when x is 10

20

Step-by-step explanation:

It's pretty much a function rule.

x=y/2 because 2.5*2=5.

So, you want to apply this rule to 10.

10=y/2

10=20/2

Hope this helps!

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .