3.2 parallel lines, transversals, and algebra

Abook store is having a 30 perscent off sale. diary of the wimpy kid books are now 6.30 dollars each what was the original price of the books

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale

Which method of gathering data will be most effective in learning how diet and fitness choices affect long-term healt