Write an expression that is equivalent to the given expression?

-19-11

Factor. 2v^2-11v-63

There are 9 children playing in a playground. In a game, they all have to stand in a line such that the youngest child is at the beginning of the line. How many ways can the children be arranged in the line? a. 40,320 b. 362,880 c. 16,777,216 d.

Suppose Miriam's uncle eats two packs of crackers before he brings the supplies, to school. What is the greatest, number of students who can share the food equally?

What is 1,248 divide by 16?

On a scaled map, a rectangular poster has dimensions of 6 inches by 8 inches. If one inch on the scale equates to 10 meters in reality, what would be the area of the poster?

An 85-foot rope from the top of a tree house to the ground forms a $45/degree$45° angle of elevation from the ground. How high is the top of the tree house? Round your answer to the nearest tenth of a foot.

In statistics, results are always reported with 100% certainty. T/F

Hong planted 16 tomato plants in his garden. What is the prime factorization of 16

The perimeter of a rectangle is 32 inches. The length is 1 foot, what is the width of the rectangle in inches? A. 4 inches B. 10 inches C. 15 inches D. 20 inches

From a batch of 13 students who had appeared in an examination, 4 students were failed. The marks of passed students were 43, 57, 45, 61, 75, 64,53,50 and 40. Calculate median marks of all students.