The freezing point of nitrogen is about −210∘c-210∘
c. the freezing point of mercury is about 171∘c171∘c higher. what is the approximate freezing point of mercury?

Josephine has a great garden with and area of 2x2 + x - 6 square feet

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

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?