What would be the second step in simplifying the expression 4 2 : (2 • 9) + 5?

multiply

divide

add

exponent

The percent of working students increased 25.5% to 10.5%, what was the percent prior to the increase? (express your answer rounded correctly to the nearest tenth of a percent!)

How are the perimeters of two similar figures related?

Harry's office had already Recycled 54 kg this year before starting the new recycling plant and the new plan will have the office recycling 1 kg paper each week after 38 weeks how many kilograms of paperwo recycled 54 kg this year before starting

He will put 45 balloons into bunches. He must use the same balloons in each. The number of balloons has to be greater than 1 and less than 10. How many balloons could be in each bunch?

The browns are having a barbeque for 6 people. they want to give each person 3/5 of a pound of chicken. how much chicken will they need to buy?

What is 2 (5x+8) = 6x+20

Where is the constant on here? 12 + x - 3.7 - 8y + 1/3

Is 3x to the power of 2 a function?

Suppose the probability of an event occurring is P (A), and the probability of the event not occurring is P (A'). If P (A) = s and P (A') = t which of the following equations must be true? A. t = 1-s B. s = 1+t C. s = t-1 D. t = s+1!

If a cylindrical water tank holds 1,000 ft3 of water and has a height of 10 feet, what is the internal base area of the water tank?