3/15 / 10/15=? i have no idea how to do this!

One side of a rectangle is 7 more than the other. If you increase the smaller side by 2, and double the longer side, find the area of the new rectangle.

An order of luxury watch parts is shipped from spain to an assembly plant in the uniited states. The package is weighed before shipment and recorded as 40.

Find two consecutive numbers with a product of 3080. Explain how you would solve this question

3/5 and 0.35 name the same amount

During the exponential phase, E. coli bacteria in a culture increase in number at a rate proportional to the current population. If the growth rate is 1.9% per minute and the current population is 172.0 million, what will the population be 7.

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.