The ratio of girls to boys in the grade is 9 to 11. If there are 135 girls, how many boys are there?

What is 5.75% of $6,000? (Express answer as dollars and cents.)

Express cos^2 x in terms of cos2x. Hence, express f (x) = 6cos^2 x - 4sin 2x in the form R cos (2x + Y degrees) + p where R, y and p are constants. Find the maxium and minimum values of f (x) and sketch its graph in the domain - 180 < = x < = 360

What are the ratios of 10 and 6 of the perimeter and of the areas

What is the y-intercept of the equation 4x + 5y = 20? (0, 4) (0, 5) (4, 0) (5, 0)

If the factors of quadratic function g are (x - 7) and (x + 3), what are the zeros of function g?

Two thirds of the product of 38 and 16

An angle cuts off 1/8 of the circle. What is the measure of this angle?

Select all the values that cannot be probabilities A.) 1 B.) square root of 2 C.) 0 D.) 0.04 E.) - 0.54 F.) 3/5 G.) 5/3 H.) 1.29

How to solve this question b/5-1=10

A recipe for lemonade calls for 1 cup of sugar and 5cups of water. How much sugar is used per cup of water?