4 minute mile whats the average speed mi/min

A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze and the second brand is 70% pure antifreeze.

To the nearest hundred thousand, there were 700,000 visitors to an amusement park last year. Which could be the exact number of visitors?

Circle J is congruent to circle P. Circles J and P are congruent. Chords O K and Q R are congruent and chords K M and R T are congruent. If OK = 2x, QR = 12, and RT = x + 3, what is the length of chord KM? 8 9 10 12

The recipe she will use calls for 1334 ounces of chopped nuts. However, the recipe feeds 5 people. How many ounces of chopped nuts does Sara need for one serving? Enter the correct answer in the box.

Solve for x. x+4/x+9 = 6/5 / is a division bar.

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.