In a class of twenty students, 6 have an average of 40%, 8 have an average of 50%, while the other 6 have an average of 60%. What is the average score for the whole class?

A photographer has a print that is 3.5 inches wide and 2.5 inches tall. If the photographer enlarges the print so that it is 7 inches wide, how tall will it be?

3=5A + 8 Solve for A? What is A?

If a mixture of 24 lb. of cement, 48 lb. of sand, and 63 lb. of gravel is needed to make 1 cubic foot of concrete, how many pounds of sand are needed to pour a pool deck of 156 cubic feet?

What is the value of k in the equation? 20k/20^4=20^9

Find at least 3 different ways to write each value below include at least one exponent in all the expressions you write. 81 2 to the fifth power 64/9

What single percentage change is equivalent to a 15% decrease followed by a 16% decrease?

Use substitution to solve the linear system of equations. x = 4 -y = 1/2x (4, - 2) (-2, 4) (4, 2) (2, - 4)

What is (24-6) + 19:2

Now 3 equivalent ratios to 5 over 2 and 4 over 7

Is it always, sometimes, or never true that a scatter plot that shows a positive association suggests that the relationship is proportional?