What is the change in potential energy if the distance separating the electron and proton is increased to 1.0 nmnm? Express the answer in joules to three significant figures.

For the expression 6 + y - 3, determine the coefficient for the variable term. A: - 3 B: 0 C: 1 D: 6

Write 5+? = 6+8. write a number to make the sentence true. Draw a quick pucture to explain.

Mr. Pham mowed 2/7 of his lawn. His son mowed 1/4 of it. Who mowed most? How much of the lawn still needs to be mowed?

The density of gold is 19.3 g/cm? What is the volume of a 13 g gold nugget? (Density: D= ) 25 cm .67 cm 1.48 cm 2.50 cm

A number is eight more than the other what is the numbers if there sum is 8

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.