the cost of lunch l after a 15% tip can be represented by the expression l + 0.15l. Simplify the expression. Then determine the total cost of the lunch after the lunch bill is $10.​

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f