The table shows how much a store charges for certain numbers of pencils. number of pencils (p) cost (c) 4 $0.72 7 $1.26 12 $2.16 based on the table, which equation could be used to calculate the cost, c, of any number of pencils, p? a c = 0.09p b c = 0.18p c c = 0.54p d c = 0.72p asap show your work
Since the rate is constant, this is a linear equation of the form y=mx+b. Furthermore, since 0 pencils cost 0, b=0, so the cost of the pencils is simply the number of pencils times 18 cents...
c(p)=0.18p (cost with respect to pencils is 0.18 times the number of pencils)
its 60-10+x why, because she bought the dress with $60 and she received $10 dollars back. We don't know the variable.
48/40 = 1 8/40
1 8/40 Simplify to 1 1/5
Hope this helps!