What is starndard and expanded form for three billion, four hundred million years old

The children's play are at the community pool holds a total of 3185 gallons of water. It takes 2.5 hours to fill the pool with 1625 gallons of water. How long will it take to fill the pool with 3185 gallons of water

What is 30 1/4 as a fraction in simplest form?

5 x 7824984262984 : 76

Is y=7x+2 x+7y=8 parallel, perpendicular, or neither?

Which expression is equivalent to 9x - (x - 3) (x + 1) + 10x? -x2 + 19x+8 O - x2+26x+8 8x2 + 10x+8 8x2 + 26x+8

A train travelled a distance of 6,000km from Lahore to Karachi in 22 hours. And during travel from Karachi to Lahore the train got late due to engine failure and reached Lahore in 28 hours.

Which is an equation of a line that has a slope of 6 and a y-intercept of (0, 12) ?

What is the perimeter of a triangle with sides of 12 inches, 9 inches, 15

Find how many quarts of 5% butterfat milk and 1% butterfat milk should be mixed to yield 60 quarts of 3% milk

Suppose you roll a regular 6-faced dice 600 times. About how many times would you expect to get a 4