What is the value for x when solving the equation
–x + (–1) = 3x + (–5) using algebra tiles?
x = –1
x = 1
x = 2
x = 3

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics