What does equivalent length mean?

What is the value of x in the equation x - ty = 30, when y = 15?

Simplify: (x^2+3x-4) + (2x^3-2x+5)

The heights of adult women are approximately normally distributed about a mean of 65 inches with a standard deviation of 2 inches. if rachael is at the 99th percentile in height for adult women, then her height, in inches, is closest to:

Use the distributive property to write an equivalent expression of 32b-20

Driving from oban to stranraer a driver averages 8 miles per gallon of feul. If feul cost 83 cents a gallon how much will the journey cost in fuel

Jasper has a coin collection consisting of quarters and dimes. He has 50 coins worth $8.60. How many of each coin does he have?

Y = 3x + 19 y = 5x + 33 Solve this system of equation by substitution

A vet's office offers boarding for cats and dogs. boarding a cat cost$20 per night and a dog cost $25 per night if the vet's office boards 18 total animals in one night and earns a total of $400 which equations can be used to find the number of

There are 101 students going on a field trip to pan for gold. If they are going in vans that hold 9 students each, how many vans are needed? How many students will ride in the van that isn't full? vans are needed.

David expressed the ratio of the number of books that he owns to the number of DVDs that he owns as 27:11. Which statement could be true based upon this relationship?