How to find area of shaded right triangle.

The final grade in an algebra course is based on a weighted average - homework counts 10%, quizzes count 15%, tests count 50%, and the final exam counts 25%. A student has a homework average of 67, a quiz average of 62, and a test average of 71.

An item is regularly priced at $40. It is on sale for 45% off the regular price. What is the sale price?

What is the value of 4x-7 when x-4?

In a population, 93% of the people are right-handed, and 7% of the people are left-handed. In each of the last 100 days, 1 person in the population has been randomly stopped on the street, For the first 93 days, the person stopped was right-handed,

X varies directly as y. If x is 9 when y is 4, find x when y is 8. a) Write the variation. b) Find x when y is 8.

Rick and Ranger sell Toyotas for Tom's Auto. Over the past year they sold 360 cars. Assuming Rick sells 5 times as many as Ranger, how many Toyotas did Ranger sell?

During his first vet visit, Pedro's puppy weighed 6 1/8 pounds. On his second visit, he weighed 9 1/16 pounds. How many weight did he gain between visits?

N the numerical sentence below, A = 8, D = 1/2, and F = 1/4. What are the values B, C, and E if the sentence below is equivalent to the numerical sentence, 2 * 4 = 8?

What's the perimeter of a regular heptagon if one side measures 3 inches? A. 10 in. B. 11 in. C. 21 in. D. 18 in.

Can there be more than one ">"'s in one inequality?