David and Mark are marking papers each set takes David 61 minutes and Mark 1 hour express the times David and Mark take as a ratio in its simplest form

Torri had$20 to buy a birthday persent for her dad she decided to buy a dvd for $18 the sales tax is $7 does she have enogh money

What is the squar root of 21

Joining the frequent visitor program at the planetarium costs $5 per year, write an equation that can be used to determine n, the number of visits per year for which the cost of being a member of the frequent visitor program is equal to the cost of

Is a home loan an example of closed end credit

Use the interactive to find an expression equivalent to 4x - 4 - 2x + 3. 2x - 1 6x - 1 2x - 7 -2x + 3

Is 42 a multiple of 7

A 14-foot tree casts an 18-foot shadow. Find the angle of elevation from the tip of the shadow to the top of the tree. Round the answer to the nearest tenth.

Describe a model that represents 3/3 of 4/4

This morning, Elena wrote a check in the amount of $42.50. This brought her balance down to - $14.25. Suppose n represents Elena's balance before she wrote the check. Which equation can be used to represent this situation? A. n - 14.25 = 42.50 B.

How many fingers do half a town have 7100 population answer and will win supreemr