Question 963120
n,p,b, the units per piece for OraNge, aPple, Banana.


Write equations in these variables to account for the three different costs.


{{{system(3n+2p+b=15,5n+7p+2b=44,n+3p+5b=26)}}}


That is the system to solve.  Choose the method you want, matrix row operations, elimination, or substitution.  My suggestion is use the "26" equation to elimininate terms of n from the "15" equation and the "44" equation.  ...   Go from there.