Marian can weed a garden in 3 hrs. Robin can weed the same garden in 4 hrs. If they work together, how long will the weeding take them?

Factor this expression. x2 + 9x + 8

Fred randomly draws two cards for a standard deck of 52 cards. He does not replace the first card. what is the probablility that both cards are jack

A textbook store sold a combined total of 440 physics and sociology textbooks in a week. The number of sociology textbooks sold was 54 less than the number of physics textbooks sold. How many textbooks of each type were sold?

A football team lost 9 yards on its first play. It then gained 9 yards on its second play. A. What expression can be written to represent how many yards the football team is from where it started? Explain your reasoning. B.

The breaking strength of a rivet has a mean value of 10,050 psi and a standard deviation of 499 psi. (a) What is the probability that the sample mean breaking strength for a random sample of 40 rivets is between 9,950 and 10,250?

You pay $20 for 4 cups of coffee. What is theunit rate?

Which relationship is likely ONLY a correlation and NOT one of causation? A) As the temperature increases, the number of air conditioners being used increases. B) As the price of a gallon of gas increases, the number of gallons of gas sold decreases.

If x3 = - 27, then what is x?

Find the sum of the geometric sequence - 3, 15, - 75, 375, ... when there are 8 terms and select the correct answer below.

Write the slope-intercept form of the equation 1) through: (1,0), parallel to y=-3x + 5