Answer:
a=14
Step-by-step explanation:
if a=10, 10/2 = 5 plus 9 = 14
Answer:
y = 4x -5
Step-by-step explanation:
y = mx+b
m = slope
b = y-intercept
so y= 4x -5
Answer:
18
Step-by-step explanation:
12 and 15 are both dividable by 3 and 3 apart so if you subtract 21 by 3 than you get 18
Answer:
x=40°
Step-by-step explanation:
(x-5)+(x+15)=90°
2x+10=90
2x=80
x=40°
Answer:
42.5
Step-by-step explanation:
divide it by 8.