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Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Multiply. write your answer in simplest form. 3/8 x 5/7

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =