If the old sea ice level was 7 million sq. km in 1978 and the new sea ice level is 4.5 million sq. km in 2020, then what is the percentage change over the years?

A notebook costs $4.50 plus sales tax. After sales tax, the notebook is $4.86. What is the sales tax rate?

Factor the following. X^2+22x+40

A long distance phone call between two cities costs $1.08 for 18 minutes. what is the rate in cents per minute?

The psychologist wishes to conduct a study on the effects of music deprivation on high school students. Hi school class consist of the 30 students number in the list below.

Which polygon has four sides, two sets of parallel sides, and sides that are not all equal?

The museum admission is $14 and a student is 10$ how much will it cost for one class

What is the percent for. 3?

Write a formula to express the radius of a circle in temrs of the circles circumference

Graph y = - x2 - 2. Identify the vertex of the graph. Tell whether it is a minimum or maximum. (0, - 2); minimum (-2, 0); minimum (-2, 0); maximum (0, - 2); maximum

The baker made 42 cookies. She divided them among 7 people. How many cookies can each person get?