Charlie had 641 marbles and put them equally into 5 bags. How many marbles

remain after placing 128 marbles in each bag?

To make trail mix you must have four cups of pretzels and two cups of bread chips what is the ratio pretzels to bread chips?

Luis is making two batches of muffins for a school picnic. One batch of muffins uses 1/4 cup of oats and 1/3 cup of flour.

The area of a square is 320 square feet. estimate the length of one side

Which expression is equivalent to 14-9? A) - 14=9 B) - 9-14 C) 9-14 D) 14 + (-9)

What is a^{-5} simplified?

Tony is a medical sales representative. His company has set a goal for him to sell 4,200 bottles of a new medicine in 3 months. If his sales are consistent from month to month, how many bottles does he have to sell each month to meet his goal?

The sum of 333 consecutive odd numbers is 183183183. what is the second number in this sequence?

Serena created a scale model of a bank check to present to charity. The model created at a scale of 8:1 and is 4 feet long. What is the length of the original check?

Solve the following system of equations. - 7x-4y=14 - 8x+5y=16

To 1 significant digit, how much Coumarin (in grams) would a 70 kg (154lb) student have to ingest to reach the LD50?