How do you solve this problem for x?

2^x = 5

if chocolate cost 1 dollar and someone buys 4 with a 10 dollar bill how much change do you owe back to them?

Numerical expression, the sum of - 3 and 8

Rewrite the given equation so there is a single power of 5,000 on each side. Then, set the exponents equal to each other. Which equation shows the result?

Three consecutive integers have a sum of 48. find the integers

Find the coordinates of the center of the following circle. (x - 3) ² + (y - 7) ² = 49

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.