Simplify the expression 2j+4j+j+7

If you toss a coin and it comes up tails on eight consecutive tosses, what is the likelihood it will come up heads on the ninth toss?

Aubrey's dinner costed $85 she tips the waiter 30% how much did Aubrey tip for the waiter

What's the 3.14 times 0.000314

It takes jordan 15 minutes to do 12 math problems. how many problems will he finish if he works for 1.5 hours? what is jordan's average rate of math problems completed per hour?

How to answer (4c + 9) ^2=0?

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.