On a mountain, the temperature decreases by 18°F every 5000 feet. What integer represents the change in temperature at 20,000 feet?

Rewrite the expression with rational exponents as a radical expression. 7 times x to the two thirds power 7x 2/3

Show working out for 1/5 of 2 litres

Sally and martha had the same number postcards. after sally sold 18 of her postcards, martha had 4 times as many postcards as sally. how many postcards did each girl have to begin with?

15) Noah and Owen paint houses together. If Noah can paint a particular house in 6 days and Owen can paint the same house in 5 days. How long will it take them to paint the house together? a) Define the variable. b) Create a rational equation.

Mr. Boyle replaced 25% of the boards on his wooden deck. If he replaced 19 boards, how many boards does his deck contain in total?

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.