At a ballroom dancing lesson there were twenty-three students. Deena danced with six boys, Chloe with seven, Moira with eight and so on for all the girls up to the last girl, Anna, who danced with all the boys. How many boys were at the lesson?

Hailey is scuba diving in the ocean. her boat is anchored 300 feet away at a 30° angle of depression. if her diving partner is 25 feet directly below her, what is the angle of depression from the boat to hailey's diving partner?

Use exactly four 4's along with any combination of the symbols plus space minus space cross times space divided by spaceand () to create the numbers from 1 to 9. Trying to figure out one for 2

It takes Audrey 1/5 hour to paint 1 3/5 square feet of wood to be used for making shelves. How many square feet of wood can Audrey paint per hour?

If the product of (x + 5) (x + r) = x^2 + 12x + s, what is the value of s?

Beginning inventory10 units @ $10 per unit First purchase35 units @ $11 per unit First sale20 units Second purchase40 units @ $12 per unit Second sale35 units Third purchase15 units @ $13 per unit What is the value of the ending inventory using a

Consider the following geometric sequence. 2,6,18,54 ... The recursive formula for the sequence is? A: an=3*an-1 B: an=2*3^n-1 The explicit formula for the sequence is? A: an=2*3^n-1 B: an=3*an-1

Write the ratio as a unit rate. 286 miles in 5 1/2 hours as a unit rate

After a power failure the temperature in a freezer increased at an average rate of 1.3 degrees Fahrenheit per hour. The total increase was 3.9 degrees Fahrenheit. Write and solve an equation to find the number of hours until the power was restored.

It is 3 degrees outside and tomorrow will be 5 degrees more

Write the equation for the translation of y = 7/x that has asymptotes at x=-3 and y = 17