20 points | If you're good at math, please help me with this 9th grade math, thank you <3 kinda running out of time here

y = x^2 + 15x + 56

Step-by-step explanation:

The solutions (where the trinomial = 0) is the factors that will turn the trinomial into 010.

(x + 7)(x + 8) = 0

This means that either -7 will turn the trinomial into 0 or - 8 will.

The trinomial is

x^2 + 8x +  7x + 56 will turn the trinomial to 0.

y = x^2 + 15x + 56 when either - 7 or - 8 is put in for x.

y = (-7)^2 + 15(-7) + 56

y = 49 - 105 + 56

49 + 56 = 105

y = 105 - 105 = 0

y = (-8)^2 - 15(-8) + 56

y = 64 - 120 + 56

y = 120 - 120=  0

No other number will turn the trinomial into 0.

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

i need more details sorry

step-by-step explanation: