Please help ASAP 40 pts

30

Step-by-step explanation:

If the triangle is equilateral, that means all angles are equal

180/3 = 60  so all angles equal 60 degrees

<Y is an angle in the triangle so it equal 60 degrees

4/3x +20 = 60

Subtract 20 from each side

4/3x +20-20 = 60-20

4/3x = 40

Multiply each side by 3/4 to isolate x

4/3x * 3/4 = 40*3/4

x = 30

$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)

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.