If 8 identical blackboards are to be divided among 4 schools, how many divisions are possible? how many if each school must receive at least 1 blackboard?

Which expression shows the result of applying the distributive property to 9(2+5m) 11 + 14m 18 + 45m 18 + 5m 2 + 45m

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.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers