Solve.The area code for a phone number in a city can be either 813 or 218. The rest of the 7-digit phone number can be formed with the digits 0 through 9. How many phone numbers can the city have before it needs to have another area code?
A. 130,000
B. 20,000,000
C. 18,000
D. 1,000,000
Answer: B
Mathematics
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Solve the equation for the specified variable.d = rt for r
A. r = d - t
B. r = 
C. r = 
D. r = dt
Mathematics
Provide an appropriate response.Round the following number to the nearest thousand: 5,385
Fill in the blank(s) with the appropriate word(s).
Mathematics
Provide an appropriate response.What percent of 345.6 is 78.9? (nearest whole percent) Use the percentage formula.
A. 43% B. 3% C. 23% D. 27% E. none of the above
Mathematics
Determine the x- and y-intercepts on the graph of the equation.y = 13(x + 4) + 1
A. x-intercept is 
; y-intercept is -53
B. x-intercept is - 
; y-intercept is -53
C. x-intercept is 
; y-intercept is 51
D. x-intercept is - 
; y-intercept is 53
Mathematics