Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.(-8x7)(-3x2)
A. -24x14
B. 24x9
C. -24x9
D. 24x14
Answer: B
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Solve the problem.Ruth is paid 7.0% of all sales plus 7.75% of all sales over $5500. Find Ruth's gross pay from total sales of $11,600.
A. $1711.00 B. $1284.75 C. $4727.50 D. $857.75
Any sound from one focus of an ellipse reflects off the ellipse directly back to the other focus. This property explains whispering galleries such as Statuary Hall in Washington, D.C. The whispering gallery shown in the illustration below has the shape of a semi-ellipse. Find the distance sound travels as it leaves focus F and returns to focus F'.
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Please enter your answer as a number without the units, rounded to the nearest tenth.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Last week, Samantha ran 21 miles. This week, she ran 19
miles. How much more did she run last week?
A. 40
miles
B. 1
miles
C. 1
miles
D. 24 miles
Write the statement as an inequality.y is greater than or equal to 60
A. y ? 60 B. y ? 60 C. y < 60 D. y > 60