Erin can do 30 math problems in 45 minutes. how long will it take her to do 50 math problems?

The circumference of a circle is 11π (11 pi) inches. What is the area, in square inches, of the circle. Express your answer in terms of pi.

The lengths of text messages are normally distributed with a population standard deviation of 3 characters and an unknown population mean.

What is f (x) = x^2+6+4written one vertex form

Explain how (13 + 10) + 5 is solved differently from 13 + (10 + 5). A) For (13 + 10) + 5, you add 13 + 5 first, then add 10. For 13 + (10 + 5), you add the 10 + 13 first, then add 5. B) For (13 + 10) + 5, you add 13 + 10 first, then add 5.

A herd of 62 horses has 3 white and some black horses. What is the ratio of black horses to all horses?

State whether the slope of a line passing through (2, - 3) and (1, 8) is positive, negative, zero or undefined.

Write the sum as a mixed number so the fractional part is less than 1 6 4/5 + 3 3/5

In the town of sleepy Oak. the fine for speeding ticket is $32.65 + s dollars. Where s is the miles per hour over the speed limit. A. What is the fine for going 38.4 miles per hour in a 25-miles-per-hour school zone? B. Mr. Taylor was fined $50.

If three times a number is increased by 24, the result is 4 less than seven times the number

Write the fraction as a mixed number 15/8