Calculate the value of X^3 + Y^2 of x=4 and y=6

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Write the equation in logarithmic form 8^x=64