A store pays $50 for a pair of shoes. The mark up is 25% need to know by morning.

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 (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.