A 150% markup of a picture frame that costs 2.99 would cost : 4.49
Answer:
graph A
Step-by-step explanation:
if you use the substitution method is graph A
Simplified, it"s y=-3/2x+22.5
Let the numbers be n, n+2, n+4
Sum equals too= 13+2(n+4), which is 2n+21
a) Equation--> n+n+2+n+4= 2n+21
b) Solution--> 3n+6= 2n+21
=> n= 15
c) Second number--> 17 (15+2)
Third number--> 19 (15+4)
d) 15+15+2+15+4=30+21
=> 51= 51
So, the equation is true.
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