Unit test, part 2: combined operations
(10 points)
1. find, explain, and correct the error in the solution given.
(1) 3x-2 +1=5 211
(2) 3x-2-1-1=52
(3) 3x - 2 = 4
3x-2 +2 = 4+2
.4 -
6.4
3x = 24
(8) 3x - 24
(9) x = 8

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?