Simplify a^1/2(2a^2-4/a) answer asap!

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?