Harry reads that a particular element has an atom with a mass of 0.000000000012 grams. What is the weight of the atom expressed in scientific notation?

Factor the trinormial x2+3x-18

Sam sold half of his comic books and then bought 6 more he now has 16 him many did he began with?

After how many seconds is your friend at a height of 4 feet

You usually buy a 16.5 - ounce bottle of shampoo. There is a new bottle that says it gives you 30% more free. What is the best equation

What does it mean for an equation to express y in terms of c

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.