Edward bought a laptop for $668.75. The price of the laptop before tax was $625.00. What is the percent of sales tax Edward was
charged?

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

Using elimination, what is -4x+2y=-12 4x+8y=-24

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079