-2(7-15) = -2(-8) = 16
16/4 = 4
Answer : D. 4
4 year college Tuition: $28,800.00
Money Saved since Sarah was born: $21,600.00
So, no, her family did not save enough for college.
The function is defined as

This means that, taken an input m, the output is the input squared, plus 7.
So, if we take the input -4, we square it to get 16, and we add 7 to get 23.
(ax-by)²+(bx+ay)²
a²x²-2axby+b²y²+b²x²+2axby+a²x²
a²x²+b²x²+b²y²+a²x²
(a²+b²)x²+(a²+b²)y²
(a²+b²)(x²+y²)
Answer:
321354345
Step-by-step explanation: