A rectangles length is 2 units more than twice it’s width. It’s area is 40 square units. The equation w(2w+2)=40 can be used to find w, the width of the rectangle.

80

step-by-step explanation:

is the anwser b. (-13)?

during a construction project, engineers used explosives to excavate 140 feet of tunnel into a mountain. but because of time constraints and environmental concerns, they brought in a tunnel boring machine (tbm) to excavate the rest of the tunnel. the data table lists some observations an engineer made about the length of the tunnel after the tbm was introduced.

which equation represents the length of the completed tunnel based on the number of days since tbm was introduced?

the answer is y = 45x + 140