Calculate area of tetrahedron given 4 vertices

Which of the following would be the best example of parallel lines in the real world A; a bridge extending over a river B; a four way stop at an intersection C; the northbound and southbound on a straight highway D; the lines formed on a windowpane

Alice bought of a pound of grapes and ate of a pound. How many pounds were left?

Write the missing family fact. 9 x 18 = 162 18 x 9 = 162 162 - 18 = 9

True or False: You roll a six-sided die. Getting a 1 on the first roll and a 6 on the second are independent events? 1. true or 2. false

Who is the 22 president.

the sum of the digits of a two-digit number is 7. The tens' digit is one more than twice the units' digit. Find the number

Louann is shopping at a Columbus day sale. She spent $276.66 on a new Michael Kors handbag. If it was on sale for 25% off the regular price and then sales tax was charged at a rate of 6%, what is the regular price of the handbag?

A space is defined as

Use area model to explain the product of 5.8 and 6. use standard form word form and expanded form

What is the equation of 60km