How do you get 5:2 or 5:1 as a ratio of 10 pencils and 2 erasers

Solve g (-1) = x^2-5x+2

Suppose that the amount of algae in pound doubles every hour. If the pond initially contains 50 pounds of algae how much algae will be in the bond after 4 hours

The function f (x) = - (x - 20) (x - 100) represents a company's monthly profit as a function of x, the number of purchase orders received. Which number of purchase orders will generate the greatest profit?

You get tired of the sand and head up to the amusement park. You can purchase 20 ride tickets for $14 or you can purchase 30 ride tickets for $22.50. Which is a better deal?

Which experiment describes a binomial experiment? Spin a spinner with sections labeled A, B, and C, 6 times and record the result each time. Draw 4 cards from a deck of cards, without replacement, and record each time the card is an ace.

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.