The scale model of a skyscraper being built is 4.2 feet tall.

a. when it is finished, the skyscraper will be 525 meters tall. what scale was used to make the model

b. the model us made out of a stack of plywood sheets. each sheet is 0.6 inch thick. how many sheets of plywood tall is the model?

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

How do you do the foil method with polynomials?