What's the answer for 18.9 hundred ninety four rounded to the nearest hundreds

Erica's friend Janine made a cylindrical vase in which the sum of the lateral area and area of one base was about 3000 square centimeters. The vase had a height of 50 centimeters. Find the radius of the vase.

Sam decides to build a square garden. If the area of the garden is 25x2 + 30x + 9 square feet, what is the length of one side of the garden?

420: (14+6) - 2 + (2•3)

The product of the roots of 8x² - 2x = 1 is:

In 2017, the world's population was 7.451 billion people. Tge world growth rate is 1.13% annually, (a) what the projected world's population in 2035? (b) how long will it take for world's population to double?

Is pi6 rational or irrational

What is 9:901 in long division

Lane's arm span is 61 inches. If his height is 1⁄4 foot longer than his arm span, how tall is he? feet and inches

given a soda ca with a volume of 21 and a diameter of 6, what is the volume of a cone that fits perfectly inside the soda can?

At a birthday party there were 20 balloons. A few of the kids decided to pop b balloons so the parents blew up another 6 balloons. Write an expression to represent how many balloons are there now.