Find the sum without the use of a number line.-3.0 + (-5.5) + (-4.9)
A. 2.4
B. -13.4
C. -7.4
D. 3.6
Answer: B
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Use percents, percent equations, and/or percent proportions to solve the application.Students enrolled in a prealgebra class can withdraw within the first two weeks without receiving a grade. If there were 30 students registered for class on the first day and 22 remaining at the end of the second week, what was the percent decrease in students for the first two weeks? Round to the nearest tenth of a percent, if necessary.
A. 36.4% B. 73.3% C. 26.7% D. 63.6%
Fill in the digits for the given place values in the following whole number.4,116,822millions: thousands:
A. Millions: 4, thousands: 1 B. Millions: 8, thousands: 2 C. Millions: 4, thousands: 6 D. Millions: 1, thousands: 6
Solve the problem.How long will it take for the population of a certain country to double if its annual growth rate is 5.1%? Use the exponential growth model 
Round to the nearest year.
A. 1 yr B. 6 yr C. 14 yr D. 39 yr
Solve the equation.4(2x - 1) = 16
A. 
B. 
C. 
D. 