Find the gcf for list of terms 10x³y⁵,-15x⁴y⁸,20x⁵y⁶

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?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

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.