At 1 pm shadow of a tree is 14 feet long. at the same time the shadow of a 18 foot telephone pole is 21 feet long. what is the height of the tree?

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

Write as a product of two polynomials. 2(3–b)+5(b–3)^2

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?