34,72,29,25,13,81,56

81-13=68 what concept is this?

The sum of two consecutive integers is 131

Matt wants to call his mother long distance. the rate is 0.80 for the first three minutes and 0.20 for each additional minute. How long can he talk for 3.00$

At mario Italian restaurant 118 of the 200 plates are dirty. What percent of the plates are clean

Solve: You Must Show All Your Work! a. 0.03n - (-0.4) = 10

On a $3000 loan, Bank A offers repayment terms of 6% simple interest for a 4-year term. Bank B offers 6% simple interest for a 5-year term. How much more interest will Bank B earn on the $3000 loan with the longer loan term?

A group of scientists studied the effect of a chemical on various strains of bacteria. Strain A started with 6000 cells and decreased at a constant rate of 2000 cells per hour after the chemical was applied.

How can I tell if a triangle with side lengths 10, 24, and 26 is a right triangle?

Determine whether the statement is always, sometimes, or never true: 1) A horizontal line is parallel to the x-axis

15% of what number is 1?

Does parallel lines meet to form an acute angle?