Jackie is driving at a speed of 65 miles per hour. Let h represent the number of hours that Jackie drives at this speed. Write an algebraic expression to represent the number of miles that Jackie travels during this time. A) 65 + h
B) 65 - h
C) 65
D) 65h

Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s

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

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain