Question

Rita earned $20 each day. lauren earned $2 the first day, $3 the second day, $4 the third day, and so on. richard earned $25 a day. lisa earned $1 the first day, $2 the second day, $4 the third day, and $8 the fourth day, and so on. who earned the most money in 10 days?

Answer 1

Lisa earn the most money in 10 days

Answer 2

Rita:
$20 * 10 = $200

Lauren:
2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 = $65

Richard:
$25 * 10 = $250

Lisa:
1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 512 = $1023

Lisa earned the most.