How do I solve 421 3/50-212 9/10

3x + 12 = 90 what is x

1. Rocco purchases a car for $14,950. There is a sales tax of 6.5%. How much is the final price with tax? Use the formula amount = cost x tax rate to find the amount of the sales tax.

Factor - x + 25x - 100

An orange can be seperated into 8 sections. If 4 people eat 4 sections, how many oranges will it take to feed them

Julie is running the concession stand for a swim team. She needs to buy supplies for the next swim meet. She has one item left to buy and she has 55 dollars left to spend. She wants to purchase cartons of apple juice and each one costs $3.75.

Round 2.767.545 to the nearest ten

A certain college randomly selected 30 freshman students who completed college algebra during their first semester.

Write 0.214214214 ... as a fraction.

Subtract the polynomials: 2x^2-3xy+4y^2 from 3x^2-5xy-6y^2

Of all the peppers the chef had 5:7 are red and the rest are green. The chef had a total of 34 green peppers. How many peppers does she have altogether