Where can we put parentheses in the following expression to make it equivalent to 7?

(20-6) : 2

or

20 - (6:2)

A circle has a circumference of 3.14 units. What is the diameter of the circle?

Susan's insurance company for 70% of her shoulder surgery, after she pays a $1000 deductible? How much will Susan pay for her surgery if it costs $12,400 A.$4720 B.$4420 C.$3720 D.$3420

For her book club, sharon reads for 45 mins each day. Write an expression for the number of hours she reads in d days

I'm a basketball contest, Chas predicted he would make 85 percent of his shots. He actually made 18 out of 20 shots. How did chad's prediction compare with his actual results

If the coordinates of a parallelogram are Q (3, - 2), R (7, - 2), S (9,3), and T (5,3), the area of the parallelogram is: A. 20 units² B. 10 units² C. 30 units² D. 40 units²

The masses, in kg, of some bags on an airplane are shown below: 7, 6.2, 6.1, 6.8, 6.1, 6.2, 6.8, 5.8, 6.2, 6.3 Jack made the following box plot to represent the masses: box plot shows minimum at 5.8, first quartile at 6.1, median at 6.

Solve the equation. - x + 8 + 3x = x - 6

What is the sign of the product (-7) (-2) (-5) (1) ? Select one: a. Positive, because the products (-7) (-2) and (-5) (1) are negative, and the product of two negative numbers is positive b.

Whats the factors of 3x2+4x+1

From the sample population of students with blond hair, what is the relative frequency of students with green eyes?