What's 21v+8-12v-7+3t-1t

If m=3 3/4, what is the value of 3m

a painter said it would take 1 person 120 hours to paint his house how many days would it take 4 people 6 hours a day

Janene has 12 ⅔ yards of ribbon and 8⅓ yards of gold ribbon. How much ribbon does janene have in all

Find the like terms: 3x y 2x

Sean's school raised $32,578. Leslie's school raised $18,749. How much more money did Sean's school raise?

Even numbers between 27 and 39

Given that the domain is all real numbers, what is the limit of the range for the function ƒ (x) = 4^2x - 100?

Karina is making accessories for the soccer team. She uses 628.86 inches of fabric on headbands for 45 players and 2 coaches. She also uses 384.30 inches of fabric on wristbands for just the players.

Can a ratio of a parents age to his or her child's age ever be exactly 3:2?

Create an example of a linear system that would best be solved using the substitution method. Explain your reasoning.