The sphere shown has a radius of 3 yards. what is the approximate volume of the sphere? use 3.14 to approximate pi

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

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

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!