If the hypotenuse is 41 inches and one of the legs is 40 inches, what is the length of the other leg in inches

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

$30 to spend on dinner tax and gratuity at mos restaurant rax is 6% and they give a 15% tip on the total bill after taxes thier dinner cost $21 which statement correctly explains wether andrew and kate have enough money to pay their bill

Me because i don't understand how to do it.: )