13z is the answer for your question.
Hey there!
-7x + 21 > -14
SUBTRACT 21 to BOTH SIDES
-7x + 21 - 21 > -14 - 21
SIMPLIFY IT!
NEW EQUATION: -7x > -35
DIVIDE -7 to BOTH SIDES
-7x/-7 > -35/-7
SIMPLIFY IT!
x < 5
Therefore, your answer is: x < 5
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Answer:
It's 90
Step-by-step explanation:
Standard form
expand first then add
f(x)=3(x-7)²+5
f(x)=3(x-7)(x-7)+5
f(x)=3(x²-14x+49)+5
f(x)=3x²-42x+147+5
f(x)=3x²-42x+152
A is answer