Four test scores are given. The first three test scores are 20% of the final grade and the last test score is 40% of the final grade. Find the weighted mean of the test scores. Round to the nearest tenth.90 88 95; 92

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x