Replace the x with 2: f(2)=2*2+7=4+7=11
replace the x with 7: f(7)=2*7+7=14+7=21
Answer:
Step-by-step explanation:
You subtract straight across.
Supplementary angles add to 180
they are x and y
x is 88
what is y
x+y=180
88+y=180
minus 88 from both sides
y=92
angle 4 is 92 degrees