Rajit buys 4 pairs of socks for $2.50 per pair. he pays with a $20 bill.
exactly how much change will he receive? use the appropriate technique(s) to solve the problem.

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.