PLEASE HELP WILL GIVE BRAINLIEST Solve the following system of equations using SUBSTITUTION:

x=-3y+3x=−3y+3

x-3y=-15x−3y=−15

1)4x+4y=1, 6x−y=1

x+y=4, x−y=2

x+y=−2,x+2y=2

2)2x+y=3, 2x−8y=19

Step-by-step explanation:

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answer: 0.95, d

step-by-step explanation:

first, you have to combine the percentages of costumers ordering pizza or salad. 25% (percent of salads ordered) plus 70% (percent of pizzas ordered) is equal to 95%. then, turn 95% into a fraction: 95/100. lastly, divide 95 by 100 and you will get 0.95, d.