A laptop computer costs an electronics store $1000. The store sells the computer for $1900. Calculate, correct to one decimal place, the profit made as a percentage of: (a) the cost price
(b) the selling price.

Can someone me i’m confused. will give brainliest and a whole bunch of points

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days