Awater tank holds 18,000 gallons. how long will it take the water level to reach 6,000 if the water is used at a rate of 450 gallons per day?

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?

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