PLEASE HELP ASAP I WILL BE MARKING BRAINLIEST

The required model is

60 pounds of concrete each bag make.

Step-by-step explanation:Consider the provided information.

Let the number of concrete bags are used is represented by y.

Part (A)

3.5 bags of concrete mix for a new set of stairs and 2.25 bags  of concrete mix for a garden wall.

This can be written as:

Timothy mixed  345 pounds of concrete in all.

Therefore,

Hence, the required model is

Part (B)  Solve for y. How many pounds of concrete does each bag make?

Consider the above equation.

Solve the equation for y as shown.

Add the like terms.

Divide both the sides by 5.75

Hence, 60 pounds of concrete each bag make.

i dont know sorry

step-by-step explanation:

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i