Solve the problem.Insert parentheses, if needed, so that the expression on the left is equal to the number on the right.16 - 12 ÷ 22 + 5 = 6
A. (16 - 12) ÷ 22 + 5
B. 16 - 12 ÷ (22 + 5)
C. No parentheses needed
D. 16 - (12 ÷ 22) + 5
Answer: A
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Do not use a calculator. Find an exact value of s in the specified interval with the given circular function value.cos s = 
, 
A. 
B. 
C. 
D. 
Translate the sentence into an equation using the variable x. Do not solve the equation. State what the variable represents.The total of her age and twice her age is 36.
A. x + 3x = 36, where x is her age B. x + 2 = 36, where x is her age C. x + 2x = 36, where x is her age D. x + 2(36) = 36, where x is her age
Solve the problem.A plane starts its descent from a cruising altitude of 32,000 feet. It descends at a rate of 2500 feet per minute. Draw a graph in which the plane's altitude is measured on the vertical axis and use the graph to estimate how long it will take for the plane to reach an altitude of 4000 feet. 
A. About 7 minutes B. About 18 minutes C. About 11 minutes D. About 7 minutes
Determine whether the expression is a partial sum of a arithmetic or geometric sequence. Then find the sum.
2.1 + 2.7 + 3.3 + ... + 13.5