which of the following questions is a statistical question A)How much time did you spend on homework yesterday B) How many nickels are in one dollar? C) How much water do sixth graders drink in a day? D) How much did the water park make on opening this year?

The system of equations graphed below has how many solutions? y = 2x + 2

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab