Multiply or divide as indicated watching significant digits. (a) (6.5 ✕ 1018 m)(5.3 ✕ 10-10 m)

(b) (5.2 ✕ 10-7 m)/(3.2 ✕ 10-12 s)

(c) (8.5 ✕ 10-4 km)(1.3 ✕ 10-3 km)

(d) (6.6 ✕ 105 kg)/(3.3 ✕ 103 m3)

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a. the profit when the unit price is equal to 0b. the unit price(s) when the profit is equal to 0c. the profit when the unit price is greatestd. the unit price(s) when profit is greatest

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

In the diagram below, abc is congruent to dec what is the value of x