How do i find the sun of this problem?

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?