In how many ways can a teacher arrange five students in the front row of a classroom with a total of 40 students

in the past year a total of 300 deaths due to pregnancy conditions were reported as well as 350,000,000 live birth. calculate the maternal mortality rate for the year?

In each of the following pairs, determine the temperature change, and whether the temperature increased or decreased. a. 45° F to - 10° F b. 35° C to 80° F c. - 19° C to 49° C d. 137° C to 0° C e. 5° C to 19° F f. 68° F to 29° C

Which system of equations has the same solution as the system below? 3x+3y=8 2x-y=5 A. 3x+3y=8 4x-2y=5 B. 3x+3y=8 4x-2y=10 C. x+y=8 2x-y=5 D. 9s+9y=22 18x+9y=45

An angle bisector AC divides a trapezoid ABCD into two similar triangles △ABC and △ACD. Find the perimeter of this trapezoid if the leg AB=9 cm and the leg CD=12 cm.

What must 4 and 2/5's be multiplied by to give 6 and 4/5 (They are both mixed fractions)

What is the mean of the data set below? 12, 15, 10, 11 |

Find the vertex of the parabola. y = 3 x squared minus 30 x + 77 a. (-2, - 5) c. (5, 2) b. (-5, - 2) d. (2, 5)

Which choice describes what work-study is?

Simplify the expression. - 3m + 2n + 9m

The sum of Emil's and Rosa's ages is 27 years. Nine years ago Emil was twice as old as Rosa was then. How old is each person? What are the two equations?