Mr Tan buys 4 white pine trees and 5 birch trees. What is the cost of the trees?

Indira withdrew $20 from her account every day for 5 days, then deposited $45 into the account. Which expression represents the change in the amount in her account?

How can i do substitution while multiplying

It takes 60oz of grass seed to seed 3000 square feet of lawn. At this rate how much would be needed to seed 5000 square feet of lawn

What is the solution to the system below? X=7 y=-2x+5 A. (7,-9) B. (-9,7) C. (7,9) D. No solution

Under what operations are the set of integers closed?

Which of the following conditions make a pair of triangles congruent? One angle and two sides are congruent. Two angles and one side are congruent. Two corresponding sides and one angle are congruent.

Prove that 3999991 is not prime.

One third kaylees age increased by 12 is equal to twice her age decreased by 3

How many total seats will the airline gain by purchasing three more of both the 737 aircrafts and MD-88 aircrafts? There is a chart too: aircraft seats 737 - 150 757 - 183 767 - 250 MD-88 142 777 - 268

What is 4/5 + 3/10 equal