Convert 0.00054 to scientific notation

It takes Benjamin 28 minutes to mow 2 lawns. Assuming the lawns are the same size and Benjamin works at the same speed, about how long will it take him to mow 5 lawns?

Two numbers have a sum of 15 and one is of the other. Find the numbers.

If e=5t where y represents the earnings from t T-shirts sold is it proportional why or why not?

The area of a certain rectangle is 288 yd2. the perimeter is 68 yd. what are the dimensions of the rectangle?

Cindy's apartment complex is offering renters insurance through their insurance company. The insurance company charges an annual premium of $565.00 which can be paid in equal payments throughout the year with her monthly rent.

The distance from the center of a compact disc to the edge of the dis is 6 centimeters. What's the area of the compact disc?

What is the domain of the function y = x2 + 4x - 2? a. All real numbers b. x < 6 c. All negative numbers d. y > 6

If 95.5% of a number, x, is 19.1, what is the value of x?

By selling a school blazer for Rs 1215, the shopkeeper earns a profit of 8%. Find the CP of the blazer

The mass of an electron is approximately 9 * 10-28 grams, while the mass of a neutron is approximately 2 * 10-24 grams. Which of the following is true? A. The mass of a neutron is approximately 2,000 times the mass of an electron. B.