Answer:
give an example
Step-by-step explanation:
×by 2 then find 10%and then times the 10% by 2 then add it on
<em>Answer:</em>
<em>$0.38 per yard</em>
<em>Step-by-step explanation:</em>
<em>Step 1:</em>
Given; A 9-yard roll of string that costs $3.42.
Required; To find the unit price
<em> Step 2:</em>
Convert $3.42 to cents

<em>Step 3:</em>
<em>Find the unit price</em>




<em>Convert to dollars</em>


Hence the unit price is $0.38 per yard.
Answer:
x=7
Step-by-step explanation:
2x-10=4 add 10 to both sides
2x=14 divide both sides by 2
x=7