What single decimal multiplier would you use to decrease by 19% followed by a 17% decrease

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7

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If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2