A right triangle’s hypotenuse is 4 feet more than three times the shorter leg, and the longer leg is 1 foot less than the hypotenuse. Find the length of the longer leg

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

If angle 2=3x +1 and angle 3=2x +4what is angle 2

17 in long 1.3 ft wide and 8in high what is the volume