Simplify the expression 4x + 3 - x - 7

Dwight has nine coins consisting of only pennies and nickels. If the total value of the coins is 29 cents, how many nickels does Dwight have?

It is 3.67 miles to your grandparents' home. If you can walk 4 miles in one hour, how long will it take for you to walk to your grandparents' home? Express your answer in decimal hours and then convert the time to minutes (to the nearest minute).

20 yards equals how many meters and how do you get that answer

pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters of a 20% alcohol solution?

Write an expression that is equivalent to 4.5 raise to the power of 5

4 is 2% of what number

In a study of births from New York State, data were collected from 4 hospitals and coded as follows: (1) Albany Medical Center (1438) Bellevue Hospital Center (66) Olean General Hospital (413) Strong Memorial Hospital What is the level of

Write a number between 1 and 50 that has at least 8 factors. B.) Write the factors.

Lily quinn makes $12.50 and hour. she works four hours on monday, six hours on tuesday, nine hours on wednesday, three hours on thursday, and seven hours on friday. what is her gross pay.

Dana loves rocks! She has 6 pieces of granite, 3 pieces of marble, 14 pieces of sandstone, and 1 piece of slate. What is the ratio of pieces of sandstone to pieces of marble in Dana's collection?