What is the efficiency of a machine that produces 4500 joules of output work for every 4250 joules of input work? (remember to put it in correct units and round to the hundredths place)

1. 3x2 + 6x Factor the polynomial

Which is the best estimate of 90/70 divided by 1 3/4

Solve for x. 2x-4/5=x+4

A square has a perimeter of 32 feet. What is the length of each side?

Kayak: $329.95,33% off

Oceanside bike rental shop charges 16 dollar fixed fee plus 9 dollars an hour for renting a bike. jessica paid 61 dollars to rent a bick. how many hours did she pay to have the bick checked out?

Solve: 2x + 8x - 1 = 19

What is the y-intercept form of " (3,-2) and (-3,-12) ?"

A quadrilateral with 90 degree angles is shown. The lengths of the left and right sides are 10 and 2 y + 4. The lengths of the top and bottom sides are 18 and 10 + 2 x. What is the value of x?

2,653 rounded to the nearest hundred