What is 6.9 times 100

Tony's baseball card collection was worth $800. Over the last 5 years, the collection decreased $300 in value. What integer represents the average change in value each year?

A (5-x) = bx - 8 x =

If five slices of pizza cost $5.50, how much do two slices cost? Ten slices? Half a slice?

John, Johan, and Jonathan collect postage stamps. Johan and Jonathan have the same number of stamps. Two times Johan's collection is eleven less than five times John's collection, and three times Jonathan's collection is three less than seven times

A wave emitted from a source has a frequency of 10 Hz and wavelength 2.5 m. How much time will it take to reach a person located 5 m from the source?

What is the slope of the line containing (-2,5) and (4,-4) ?

GCF of 110x^3, 30x^4, 60x^8

Which property of real numbers is shown below? 3 + ((-5) + 6) = (3 + (-5)) + 6

A caterer combines 6 quarts of pineapple juice, 7 pints of milk, and 4 cups of apple juice to make smoothies. How many cups can be filled with smoothies? Explain.

If Q (x) = 4x^2 - 1, find Q (-7)