Match the two numbers with their least common multiple (LCM). 10 and 4
30, 20, 40

10 and 6
30, 20, 40

10 and 8
30, 20, 40

PLEASE HELP!

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?