The mean mass of 8 boys is 55 kg and the mean mass of a group of girls is 52 kg. The mean mass of all the children is 53.2 kg. How many girls are there?

What happens when the supply of a nonperishable good is greater than the consumer wants to buy? A. either the good remains unsold or the price drops B. the good becomes a luxury and the price rise C.

If two lines in space do not intersect the lines must be parallel

Negative 30 is greater than or equal to negative 4a plus 18 minus 2 in parentheses 2 to the third power minus a

What is the perimeter of the square that has the same area as the rectangle? A. 144 in. B. 48 in. C. 30 in. D. 12 in.

Last week 1200 sandwiches were sold at Chick-Fil-A. This week only 1776 sandwiches were sold. WHat is the percent of decrease?

30 pts. Harrison has 2500 kg of sand delivered to a construction site every day. About how many tons of sand does he have delivered to the site after 4 weeks? 1 ton≈907.2 kg (Make sure you show work/explain how you arrived at your solution.)

How many more is the 3 in 43021.4 then the 3 in 9760

For each of the following variables, state whether it is quantitative or qualitative. If it is quantitative, specify continuous or discrete. If it is qualitative, specify nominal or ordinal. Whether a gallon of milk is organic or regular. A.

A pizza has a diameter of 16 inches. What is the approximate circumference of the pizza? A. 100.5 in B. 50.2 in C. 25.1 in D. 12.6 in

Jennifer is saving money to buy a bike. The bike costs $245. She has $125 saved, and each week she adds $15 to her saving. How long will it take her to sabe enough money to buy the bike?