An expression is shown below: 3(9a+6b)−(5a+2b) Part A: Simplify the expression shown above. Part B: If a represents apples that cost $0.35 each and b represents bananas that cost $0.20 each, what is the total cost based on the expression above?

part a : 3(14a-8b)      

Step-by-step explanation: part a : you add 9a and 5 a since they have the same varible  then you add 6b and 2b to get 8b which gets you your first answer of 3(14a-8b)

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: