Whats the value of x 1-7x=-20

Optimization? The top and bottom margins of a poster are each 6 cm and the side margins are each 4 cm. If the area of printed material on the poster is fixed at 384 cm2, find the dimensions of the poster with the smallest area.

Laura is trying to find the volume of a cone. So far she has found area of the base of a cone and multiplied it by the height of the cone. Describe where she needs to do next

Square root of 400 rounded to nearest hundred

What is the value of the expression 3y-zy+5z when y = 6 and z = 2?

Is 3/3 and integer or no

Find the digits in the ones place, in the hundredths place, and in the ten thousandths place for the following number. 361.9167

A turtle is at the bottom of a 20 foot well. Each day it crawls up 4 feet but it slips back 2 feet. After how many days will the turtle reach the top of the well?

Y = - 4 * 2x is a reflection of y = - 1/4 * 2x. True or false?

A company is designing a new cylindrical water bottle. The volume of the bottle will be 186 cm the height of the water bottle is 7.9cm what is the radius of the water bottle

One sheet of stamps is shown at the right. Joe needs to buy 50 stamps to send out invitation for her graduation party. Will 2 sheets of stamps be enough? How do you know