Justify each step of the solution by stating the property that was used to get to each step.
given: 2(10-13x) + 9x = -34x +60
step 1: 20- 26 x + -34 x + 60
step 2: -26x = -34x +40
step 3: 8x = 40
step 4: x = 5

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft

What is fraction that is equivalent to 3/8