Provide an appropriate response.Estimate answer by rounding numbers to the nearest ten. Then find the exact answer. A welder uses 88 welding rods for his first job and 19 welding rods for a second job. How many more rods did he use for the first job?
A. 60 rods; 79 rods
B. 70 rods; 71 rods
C. 60 rods; 69 rods
D. 70 rods; 69 rods
Answer: D
Mathematics
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Solve the problem.To raise money, the local YMCA bought 150 kg of taffy for 
. They sold the taffy in 500 g bags for $3.60 each. How much profit did they make?
A. $380.25 B. $2535.00 C. $540.00 D. $760.50
Mathematics
Solve the equation. 
= -0.805
A. {-0.00161} B. {-0.000161} C. {-0.0161} D. {-1.61}
Mathematics
Write the percent as a fraction or mixed number in lowest terms.900%
A. 900 B. 90 C. 9 D. 9000
Mathematics
For the piecewise function, find the specified function value.f(x) = {
f(4)
A. 18 B. 4 C. -6 D. 3
Mathematics