What is the 28th term of the arithmetic sequence with a1=4 and d=-2?

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.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

What expression is equivalent to 42x-56y