A)(-1)+(-1)+(-1) b)-4+(-3):[2-(-6):(-2)]+1 c)(-3+9-7)-(-4-7+5) d)(-64):(-4)-35:(-7) e)2*{3-(-36):(9)}-2*[5-(-7)

Find the sum of the first 8 terms of the following sequence. round to the nearest hundredth if necessary.

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

What expression is equivalent to 1/2(2+3x-6)