Use a calculator to find the approximate value of arccos (0.77).

A: 50.35°

B: 37.6°

C: 39.65°

D: 100.71°

Select the correct answer from each drop-down menu. Last year, sales at a book store increased from $5,000 to $10,000. This year, sales decreased to $5,000 from $10,000.

Jasmine makes $23 an hour; her boss tells her that she is receiving a 10 percent raise next month. What will her new salary be next month? How much more money will she earn working her usually 30 hours per week?

3x+2+5 (x-1) = 8x+17 what is x

A rectangular field has an area of 1,764 m (squared). The width of the field is 13 m more than the length. What is the perimeter of the field?

The ratios in an equivalent ratio table are 3:12, 4:16, and 5:20. If the first number in the ratio is 10, what is the second number? Justify your reasoning.

If f (x) = 3x - 2 and g (x) = x2 + 1, find (+6) x).

A boy is 17 years old and his sister is twice as old. when the boy is 23 years old what will be the age of his sister?

3. Find the smallest number of sweets that I can be put into bags which all cantain either 9, 15, 20 or 24 Sweets with none left over.

Larry is using an online calculator to calculate the outputs f (n) for different inputs n. The ordered pairs below show Larry's inputs and the corresponding outputs displayed by the calculator: (1, 5), (2, 9), (3, 13), (4, 17) Which of the following

Complete the statement to explain why 8,000 : 800 = 10.