Estimate to the nearest whole number: 2(88.5) + 3(39.7) −14.2
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Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?