Solve using substitutuion

(Question 1)

2x - 7y = - 2

2x + y = 14

(Question 2)

8x - 7y = 17

-x + y = - 3

What is the quotient of 2m^9n^4/-4m^-3n^-2 in simplest form? assume m=0, n=0 A.-m^-12n^6/2 B.-m^27n^8/2 C. 6m^12n^6 D. 8m^12n^6

An airplane is flying at an altitude of 31000 feet when it begins its descent for landing. if the runway is 104 miles away, at what angle does the airplane descend

How many pairs of whole numbers that have a sum of 40

The area of a circle is 49 pi m2 what is the radius?

What is the value of x? x+1/3=9? x=

A recipe for 2 1/2 dozen whole-wheat muffins require 600 g of flour. How many muffins can be made with 900 g of flour?

Justine enrolls in a music program. The cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson.

I have 4 congruent sides, and opposite sides are parallel what am I?

Given: AD diameter of Circle P. If m <1 = 30°, then m AB =

Sarah starts at one corner of a square field and walks 60 feet along one side to another corner of the field. She turns 90° and walks 40 feet, and then walks straight back to where she started.