How do you simplify this and write as a polynomial in standar form? (x-9)3x-7)+(3x^2-5x+2)

Standard form of

Step-by-step explanation:

Here, the given expression is

Now, simplifying the above expression in parts, we get

hence, combining both parts:

=

The above expression is of the STANDARD FORM:

Hence, the standard form of

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls