Answer:
16
Step-by-step explanation:
Substitute (7) into the equation.
y= 1/4(15-(7))^2
Add it tighter and it will make ur number then subtract that
Answer: 42/13
Step-by-step explanation: Multiply everything by 7 to eliminate the fraction:
k+ 21 - 14k = -21
Isolate the variable:
k - 14k = -21-21
13k= -42
divide the sides by -13.
42/13