Reposting because i really need ! rewrite using only cos and sin: cos 2x - sin x answer choices: a) cos^2x - sin^2x - sin x b) cos^2x - sin^3x c) cos^2x + sin^2x + sin x d) cos^2x - 3 sin x

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.

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation