PLEASE HELP! If the estimate of an 18% tip on an $82 dinner bill is $16. What is the exact answer?

$14.76

$15.00

$16.40

$18.40

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

What is the simplified form of square root of 400 to the 100th power ?

Otto used 6 cups of whole wheat flour and cause x cups of white flour in the recipe. what is the equation that can be used to find the value of y, the total amount of flour that otto used in his recipe and what are the constraints on the value of x and y? a y=6x; x is any interger greater than the equal to 0 and y is an interger greater than the equal to 6? b y=6x; is any real number greater than or equal to 0 and y is any real number greater than or equal to 6? c y=+6; x is any intger greater than or equal to 0 and y is an intger greater than or equal to 6? d y=x+6; x is any real number greater than 0 eqaul to 0 and y is any real number greater than or eqaul to 6? [someone answer this with a b c or d simplyactaully answer it this took forever to type on my phone] you. ill even raise the number of points get