Ok smart math people, why does this work. u have 78 subtract your age add 40 and its year your born

The red line and the blue line trains just arrived at station when will they next arrive at the station at the same time

How do you find the volume and surface area of a larger figure using the scale factor and the surface area plus volume of the smaller figure?

5200 for her car 1 year ago. The value of her car now is 4,420

A bicycle store pays $29.62 for a helmet the store sells the helmet for $39.99 find the percent markup

If angle e = 130 degrees and angle h = 45 degrees, what is the measure of angle g?

Find the indicated partial derivatives. w = x y + 7z

Identify the terms and like terms in the expression - x - 9x*2 + 12x*2 + 7

Write these decimals as words 25. 134 100.01 HALP

Four friends bought 10 lbs of nuts and shared them equally. How many pounds if nuts did each friend get

Ten friends went to a local restaurant and all had the buffet at $6.75 each. Seven friends added ice cream for dessert for $1.99 each. Since it is a large group, a tip of $15.00 for the waitress was added. The following is the restaurant bill.