Let b=the number of boxes, c=cost of the pens
The expression that represents the total cost of the pens if a box costs 4 dollars and then she gets a 1 dollar discount for every additional box is c(b)=3b+1. We got this from the original equation c(b)=4+(4-1)(b-1). Simplify this and you will get c(b)=3b+1.
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The next number in the linear pattern would be 18
Answer:
sas postulate...............
Step-by-step explanation:
because there is one side ,one angle and another side ,sooo
