1. Solve the following equation for w: 2w - 0.4 = 1 + 1.8w ?
2. Which of the following points is a solution to the equation 2y+x-8=0 ?
3. Solve the following equation for k: 38 + 7k = 8(k+4)?

the y will be in still but your answer will be y x 3

step-by-step explanation:

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b

step-by-step explanation:

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36