Which step is not necessary when solving this system of equations by graphing? 3x-y=4 x+y = - 4

Determine the average of the following test scores: 97,99,87,89

Write the word sentence as an equation. 9 times a number b is 36.

Mr. yetkin uses 4/6 of a sheet of plywood to board up a window. how much plywood is left?

I'm discovering that her family had 70% risk of heart attack Aaron took the treadmill testTo check her own potential of having a heart attack the doctors told her that the reliability of her stress test is 67% the test predicted that Aaron will not

Bella is working on the world record for longest beaded necklace. She has 10,000 glass beads that have a diameter of 0.4 cm. If she strings these beads end to end, how long will her necklace be?

In △DEF, d = 20, e = 25, and f = 30. Find m∠F to the nearest degree.

so far this week emma has read more then 3 times as much as he read last week. he read 360 pages this week how many pages could he have read last week

The cost (in dollars) of making n birthday cakes is represented by C=24n+35. How many birthday cakes are made when the cost is $395? explain your reasoning

Paige has 24 magazine's in her magazine collection each month she adds 2 more megazines to her collection how many magazines will she have in 3 months write two number sentences to show how to solve

Three less than a certain number is 12 less than twice the number. Find the number