(12 points) Explain how you will solve the pair of equations below by substitution

Show all the steps and write the solution in (x, y) form.

y = x + 4
y = −2x − 2

pls help
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Simplify. show your work. ( 6x-2 ) ^2 ( 0.5x )^4

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?