The answer is a. hope that helped
I'm not a 100% but i think it's <
Assume x are Erica's classes & y are Bo's classes.
x+y=35
x=2y-13
Replacing the value of x into the first equation
2y-13+y=35
3y=35+13
y=16 classes
x=2*16-13=19 classes
Answer:3x⁵
Step-by-step explanation: is equivalent to 3x⁵
Answer:
x = 16.
Step-by-step explanation:
The 3 angles sum to 180 degrees so:
x + 19 + 6x - 7 + 56 = 180
7x + 68 = 180
7x = 112
x = 112/7 = 16.