A
50 cents to 2.50 *I think I am not sure my sister has the same problem she said that one*
Answer:
E = 8
Step-by-step explanation:
y - x = 4
y - (3y) = 4
y - 3y = 4
2y = 4
y = 4/2
y = 2
x = 3y
x = 3×2
x = 6
x + y = 2+6
x+y = 8
The formula for the Pythagorean theorem is,