27 to the power of 3x=81

Awan makes 3 sandwiches and cuts each sandwiches into sixths. How many 1/6 size sandwich pieces does he have?

What is 5/6 times 11/12 in fraction form?

An early-warning detection system for aircraft consists of four identical radar units operating independently of one another. Suppose that each has a probability of 0.95 of detecting an intruding aircraft.

Billy needs to read 500 minutes this week for his English class. He is going to read 6 days. If he already reads 15 minutes everyday, how many additional minutes does he need each day to read at least 500 minutes?

T=-2a^2+a+6 N=-3a^2+2a-5 N-T polynomial in standard form

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.