Round to four decimal places. Do not use spaces in your answer.

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A worker is hired for $80 a day on the condition that if business is slow, the worker will only receive half pay. At the end of 20 days, the worker receives $1,320. On how many days was business slow?

What is the vertex form of the equation? y = x2 + 4x - 3 A. y = (x - 2) 2 - 7 B. y = (x + 2) 2 - 7 C. y = (x - 2) 2 + 7 D. y = (x + 2) 2 + 7

Let X be a normally distributed random variable with a mean of 20 and a standard deviation of 2.25. Using Excel, find the proportion of the values of X that are less than 21.

A histogram can only display what data?

You hike uphill at a rate of 200 feet per minute. Your friend hikes downhill on a same trail at a rate of 250 feet per minute. How long will it be until you meet?

Show me how to work the equation for 6*+20=-4

12. On a table there were 16 dimes and quarters. The value of the coins was $2.50. How many of each coin was there?

What is 54 ones times 10

Suppose you receive $100 for a graduation present, and you deposit it in a savings account. Then cach week thereafter, you add $5 to the account but no interest is earned.

The rules concerning the age a of a soccer player in a recreational league mandate that a player be 17 years of age or older. Which inequality BEST represents this situation? A. a > 17 B. a ≤ 17 C. a ≥ 17 D. a < 17