How many pounds must a sand bag weigh to test if a safety net can absorb the proper amount of force?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?