I don't get the question nor the answer for (5x+3y) + (2x+12y)

Will mixing 4 parts red with 3 parts yellow make the same shade of orange as 12 parts red and 6 parts yellow

Kiera ran the first part of a relay in 4 4/6 minutes. David ran the next part in 3 5/6 minutes. How long did they take to run both parts of the relay?

3200 dollars is placed in an account with an annual interest rate of 6.5%. To the nearest year, how long will it take for the account value to reach 15300 dollars?

How do you put a fraction as a mixed number and a whole number

Jamie is x years old. Jamie's brother Pete is 3 years older. Enter an expression into the box to represent the sum of their ages.

A triangular prism has a base area or 20 square feet and a height of 4 feet find the volume

which is a statistical question? A. how old is harvey? B. what did oliver eat for dinner last night? C. how many hours a day does allen spend on his math homework? D. how much money did oliver give to roy?

the school spent 345 dollars on each new computer they brought if they brought 38 new computers how much did he spend in total

What were the main contours of English colonization in the seventeenth century?

Which is bigger 12 pints or 6 cups