What is standard form for 6.43999001 x 10^8

1. Alex drove 1,376 miles across the country in four days. He drove 209 miles on the first day, how many miles did he drive each of the remaining three days?

The deli scale weighs meat and cheese in hundredths of a pound, same put 5/10 pound of pepperoni on the deli scale. what weight does the daily scale show?

Determine the volume of a rectangular box with a length of 5 inches, a height of 7 inches, and a width of 9 inches.

Five friends are going to share 1/2 of a pizza. How much of a whole pizza will each friend eat? Which equation can be used to solve the problem above? 5 divided by 1/2 = n 1/2 divided by 5 = n n divided by 5 = 1/2 n divided by 1/2 = 5

What is the percent increase if your salary went from $85 to $100 per week?

A cylindrical tank with a radius of 10 ft and a height of 40 ft is filled with gasoline. given a density of 670 kg/m 3, determine the mass (lbm) of the gasoline in the tank.

A couple has two children. what is the probability that both are girls given that oldest is a girl? what is probability that both are girls given that one of them is a girl?

6+5+9-3+1-4+9-3+45+36-52145+542

Simplify 2d-4a+5n - (3n-2A+d-10)

How do you factor 2n^2+3n-9