Which sequence is geometric?

In the triangle abc< angle c is a right angle. find the value of the trig function indicated. find tan a if a =12, b=5 a. 13/12 b. 12/13 c. 5/12 d.12/5

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup