Help me with math and ill mark brainliest

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

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 .

i need the options

step-by-step explanation:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value