Which equation illustrates the division property of equality?
a.
f+8=40
f+8-8=40-8
f=32
b.
f/8=40
f/8*8=40*8
f=320
c.
f*8=40
f*8/8=40/8
f=5
d.
f-8=40
f-8+8=40+8
f=40

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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.

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.