The formula for c the cost of a painter, is c = 20h + 35 where h represents the number of hours the painter worked on a job A homeowner has $125 to spend on painting Which equation could be used to find the number of hours that a painter can work?

Option (2)

Step-by-step explanation:

Formula for c the cost of a painter is,

c = 20h + 35

Here, h = hours the painter worked

If a homeowner has total amount $125 to spend on painting,

So, for c = 125,

125 = 20h + 35

(20h + 35) - 35 = 125 - 35

20h = 125 - 35

h =

Therefore, Option (2) will be the answer.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form