If y+3y+5y=−18 y + 3 y + 5 y = − 18 , then what is the value of y y ?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?