What is the least common multiple of 30 and 13

How do I write 4/9 plus 3/5 multiplied by 6

David has c decks of cards. Each deck has 52 cards in it. Using c, write an expression for the total number of cards David has.

e. After seeing her remodeled bathroom, Paulina's friend Sabrina also wants to remodel her bathroom. The tile she has chosen is shown below

Use two unit multipliers to convert 1250 square inches to square feet

Square root of - 25 Show the value of this number in a+bi 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.