Find the amplitude, reflection, and period for the following question

1) y = - 3 cos x

2) sin 4x

3) y=2 cos 1/4x

4) y=2 cos pi x - 3

5) y = 1-3 sin 2x

6) y = sin (-2pi/3 * x)

How many thirds are in one half

At a hockey game, a vendor sold a combined total of 175 sodas and hot dogs. The number of sodas sold was 35 more than the number of hot dogs sold. Find the number of sodas sold and the number of hot dogs sold.

What is the solution to - 4x+5y=14 and 7x+3y=-1 I need the answer now.

A car dealership show 216 cars in four months at what rate did the dealership sell cars in

A rectangular window in a door is 30 inches tall. If the area of the window is 300 square inches, how wide is the window?

Write 3*3*3*3*5*5*5 in exponential form

On Monday 25 of 28 students showed up on time to school. Which represents the percent of the students who did show up on time to school?

Solve the equation: 15=7-x

Which scenario could be represented by the algebraic expression n/12?

Is 90 a composite number?