Can someone explain what i did wrong?

56

Step-by-step explanation:

Since A is 4 and C is -3, you have to follow PEMDAS or (whatever it's called) and do exponents first. -3^2 is 9, and 4*9 is 36. since B is 5, 5*4 is 20, and 36+20 is 56 I think

-16

Step-by-step explanation:

a= 4

b= 5

c= -3

ac² + ab   plug in values:

= 4 * -3² + 4 * 5   follow the PEMDAS order of operations

= 4(-9) + 4 * 5

= -36 + 4 * 5

= -36 + 20

= -16

step-by-step explanation:

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol