18 Machine A and machine B both make car parts. Machine A makes 6 parts every 10 minutes. Machine B makes 13 parts every 15 minutes. On Monday machine A makes parts for 12 hours mnachine B makes parts for 10 hours Work out the total number of parts made by the two machines on Monday.

For [tex]f(x) = 4x+1[/tex] and [tex]g(x) = x^{2} -5[/tex] find [tex](f[/tex] ° [tex]g)[/tex][tex](4)[/tex]

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

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.