Derivative of tan pi x = ?

How do you write 18 tens in standard form

Roberto left his parent's house at 11 A. M. traveling at an average rate of 30 mph. His parents left their house at 12 P. M. traveling at an average rate of 45 mph going the same way as Roberto so that they could catch up to him.

A bakery packages cookies in two sizes of boxes, one with 18 cookies and the other with 24 cookies. A small number of cookies are to be wrapped in cellophane before they are placed in a box.

What is 11/12 of 5 I need the answer to this question

132:8 by placing the first digit

Solve the inequality 6t > t + 6.

What is the answer for -4x+4y=12 3x-4y=-18

rachel is frosting the top of two cakes and wants to know which cake will require more frosting. one cake is round with a diameter of 8 inches. the other cake a square with the length of 9 inches.

What is this 4x + 6 = 10

What is the difference? Express your answer in lowest terms. - 1/10 - (-8/10)