Find the sum.
(x^4 + 3x^3 – x^2 +6) + (2x^4 – 3x + 9) =

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza

Peyton's field hockey team wins 4 games out of every 7 games played. her team lost 9 games. how many games did peyton's team play?