Write 7.75 x 10^-3 in standard notation

Haha lol answer 1+7 if ur answer is 1308482304830248302 I will mark brainliest

Zeke drove 346 miles in 8 hours find the unit rate and rate

Sam sells not necklaces for $10 each. Each necklace cost her $5 to make. She also has $5,000 in fixed costs per year for her jewelry business. how many necklaces must she sell in order to make a profit of $1,000 in one year?

W (n) = n-5; find (4) evaluate function

Solve the system by the substitution method. Sol of x + 7y = - 1 - 4x - 2y = - 22

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.