A square and a rectangle have equal perimeters. The length of a side of the square is 4x – 1. The length of the rectangle is 2x + 1 and the width is 2x. Write and solve an equation to find x.

1.Peter works as a delivery person for a bike shipping company. The graph shows a linear model for his delivery times on different days.  

Peter’s Deliveries

(a)What is the equation of the line, first written in point-slope form and then written in slope-intercept form? Show how you determined the equation.

(b)Based on the linear model, predict how long it initially took Peter to deliver his packages (y-intercept). Approximately how much did his delivery time decrease per day (slope)? Complete sentences

Step-by-step explanation:

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

468

step-by-step explanation: