The solution to -3x + 5x - 7 = -11 is .

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25