What is 8 million + 5 billion + 7 billion

A shipping tube is shaped like a triangular prism. The bases are equilateral triangles with edges of 6 inches and a height of 5.2 inches. The tube is 14 inches long. Find the lateral surface area of the shipping tube.

How do i solve for this? I forgot

Virginia beach is about 20 miles wide and 28 miles long. if one inch of rain falls there during a daily rain shower, how many cubic feet of rain fell? (convert all units to feet first)

Each cement block weighs 0.4 kilograms. How much do 9 blocks weigh in total?

I don't know how to use elimination without getting decimals when I divide to get like x's or y's The equation for elimination is - 4x-2y=14 - 10x+7y=-25

Reduce the fraction 34/48 to its lowest term

Maleeyah and Bella bought 1/2-pound of nuts. They are sharing the nuts equally. How many pounds of nuts will each girl get?

Calculate the value of the expression 3.2 (2)

Five siblings have a combined age of 195 years the oldest is 13 years older than the youngest mark the middle child and it's five years younger than Josie the other two siblings are six years apart if the second oldest child is 42 what are the ages

Give an example of two fractions whose sum can be simplified to 1/2