Function call in expression: Reduced pricing

Write a single statement that assigns totalCost with the discounted cost of item $1$ and item $2.$ Use the provided function DiscountedPrice to determine the discounted cost of each item:

function saleItemCost $=$ DiscountedPrice$($originalItemCost$,$ discountedRate$)$

$\%$ originalitemCost: Original cost of an item in dollars

$\%$ discountedRate: Discount rate as a decimal value

saleItemCost $=$ originalItemCost $*(1-$ discountedRate$)$;

end

Ex: If item $1$ costs $10$ and has a $0\mathrm{.}5$ discount rate, and item $2$ costs $20$ and has a $0\mathrm{.}4$ discount rate, then assign totalCost with $17($ex: DiscountedPrice $(10,0\mathrm{.}5)+$ DiscountedPrice $(20,0\mathrm{.}4)$ is equal to $5+12$

Function $8$

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MATLAB Documentation

function totalCost $=$ CartTotal $($item$1$Cost, item$1$Discount, item$2$Cost, item$2$Discount$)$

$\%$ Assign totalcost with the discounted cost of items $1$ and $2$

totalcost $=0$

Code to call your function $?$

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$1$ CartTotal $(10,0\mathrm{.}5,20,0\mathrm{.}4)$