Program Specifications Write a program to calculate the cost to paint a wall. Amount of required paint is based on the wall area. Total cost includes paint and sales tax.

Note: This program is designed for incremental development. Complete each step and submit for grading before starting the next step. Only a portion of tests pass after each step but confirm progress.

Step $1(2$ pts$).$ Read from input wall height, wall width, and cost of one paint can $($doubles$).$ Calculate and output the wall's area to one decimal place using cout $$ fixed $$ setprecision $(1)$; once before all other cout statements. Submit for grading to confirm $1$ test passes.

Ex: If the input is:

$12\mathrm{.}015\mathrm{.}029\mathrm{.}95$

the output is:

Wall area: $180\mathrm{.}0$ sq ft

Step $2(2$ pts$).$ Calculate and output the amount of paint needed to three decimal places. One gallon of paint covers $350$ square feet. Submit for grading to confirm $2$ tests pass.

Ex: If the input is:

$12\mathrm{.}015\mathrm{.}029\mathrm{.}95$

the output is:

Wall area: $180\mathrm{.}0sqft$

Paint needed: $0\mathrm{.}514$ gallons

$14F$

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ENG

$9008$ PM

$1/21/2024$