Use the commutative law of addition to write an equivalent expression.ab + 6
A. 6 + ab
B. 6ab
C. 6(1 + ab)
D. ba + 6
Answer: A
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Solve the problem.A brick staircase has a total of 15 steps The bottom step requires 114 bricks. Each successive step requires 5 fewer bricks than the prior one. How many bricks are required to build the staircase?
A. 1147.5 bricks B. 2370 bricks C. 1185 bricks D. 2235 bricks
Solve the problem.For f(x) = 9 - 2
and g(x) = 5 + 4
. Find an equation for f + g.
What will be an ideal response?
Solve the problem.To determine the number of fish in a lake, a park ranger catches 280 fish, tags them, and returns them to the lake. Later, 108 fish are caught, and it is found that 48 of them are tagged. Estimate the number of fish in the lake.
A. 630 B. 124 C. 1,451,520 D. 19
Tell which set or sets the number belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.0.9898...
A. irrational, real B. natural, rational, real C. real D. rational, real