Which expression has a value of 8, using only four 4s and any of the following: + , – , • , ÷, exponents, and/or parentheses?
a. 4 • 4 – 4 – 4
b. 4 • 4 • 4 – 4
c. 4 • 4 + 4 – 4
d. 4 • (4 + 4) – 4

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.

What is the result of the following division?

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.