PLEASE PLEASE HELP I WILL GIVE EXTRA POINTS AND BRAINALIST TO FIRST PERSON THXXX

Multiply. write your answer in simplest form. 3/8 x 5/7

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?