Find the sum of the first 150 terms of the arithmetic series: 4, 5, 6, 7, 8, … 7,345 11,775 13,322 15,654

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Can someone me with these two circle theorem questions asap?

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?