Simplify the expression. Show your work. (5x^4 - 3x^3 + 6x) - (3x^3 + 11x^2 - 8x)

Maisey and mayhem are dogs. Maisey runs at an average of 5 miles per hour and mayhem runs at an average of 9 miles per hour. On a run through the countryside, the dogs covered a total of 37 combined miles and a total of 5 hours running.

There are 25 cows on the farm. Some of the cows are in the barn. 14 of the cows are in the field. How many cows are in the barn? Think : is this a joining or separating problem?

4)) Solve for r. 10' = 1,000 r=

Gianna is substituting t = 2 and t = 7 to determine if the two expressions are equivalent. 5 (2 t + 3) 5 t + 25

Find y when y = 4x - 2 and x = 4.

Suppose that 13 inches of wire costs 65 cents. At the same rate, how much (in cents) will 27 inches of wire costs.

In right ∆ABC, m B = 90°, m C = 40°, and BC = 10. What are the other two side lengths of the triangle?

To pass a math test students must answer at least 0.6 of the questions. Donald's score is 5/8, Karen's score is 0.88, Gino's score is 3/5, and Sierra's score is 4/5. How many of the students passed the test?

Yolanda's class has 40 members. The teacher will not give a test unless at least 80% of the class is in attendance. How many class members must be present in order for the teacher to give a test?

If lemonade costs 1.5 cents per ounce, what is the cost per pint?