Ta gas station, 15 gallons of gas has a price of $17.55 and 18 gallons of gas has a price of $21.06. write a direct variation equation that relates the cost y of any number of gallons of gas x. how many gallons of gas can be purchased for $23.40?

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?