The Charles River in Massachusetts is 130 km long. How long will it be on a map drawn at the scale 1:2,000,000?

How many $20 bills do you need to have to make $280

For each polynomial, determine the degree and write the polynomial in descending order. a. –4x^2 – 12 + 11x^4 b. 2x^5 + 14 – 3x^4 + 7x + 3x^3

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?