had a bag of 28 marbles 1/4 the marbles were red and 3/7 were yellow, how many marbles were neither red nor yellow?

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

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°