Amy mows lawns to earn money for a new phone. She charges $8.15 an hour. How much money will she earn if she mows for 4.5 hours? Show your work for full credit.

its easy but let me explain

Step-by-step explanation:

If she earns $8.15 an hour and she works for 4 1/2 hours.

You multiply

$8.15 x 4.5 = n

n= $36.675    But your not done yet, ROUND TO HUNDREDTHS PLACE!!!

if there is a number 5 or higher next to the hundredths place then you bump the number up by 1

she would of earned $36.68 in 4.5 hours  Glad to help

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

savings account is an account only used for saving money. this acts as an emergency source of funding for an individual. answer a would result in the money in his account to grow as it specifically states that interest is compounded daily at the rate of 2%

step-by-step explanation: