Evaluate the expression

What is b=4 and y=-5. 8b-y

Which statement is true? a. In any right triangle, the sine of one acute angle is equal to the cosine of the other acute angle. b. In any right triangle, the sine of one acute angle is equal to the sine of its complementary angle. c.

A spinner is numbered from 1 through 10 with each number equally likely to occur. What is the probability of obtaining a number less than 2 or greater than 6 in a single spin? 2 1/2 2/5 3/5

If a store has 25 customers, and 3 leave the store, how many customers are left?

Is a triangle with sides of 9 meters, 12 meters, and 15 meters a right triangle? explain

Shannon had 765 cards in her baseball collection. She sold 153 of the cards to purchase a new iPod. What is the percent of change in the number of Shannon's baseball card collection?

Find the non-extraneous solutions of square root (x+9) - 5 = x+4 x = - 2 x = - 9 and x = - 2 x = 9 x = - 9 and x = - 8

If a = 7, what is the value of the expression 2 (a + 8) ?

3+4 * (5 - 2) simplify the expression

Tony, Martin, and Alfredo play together on a basketball team. During practice one day, they each shot 20 free throws. Tony made 14 out of 20, Alfredo made 3/4 of his shots, and Martin made 60% of his shots.

Leo reads 10 pages in 1/2 hour. What is the unit rate for pages per hour? For hours per page?