17. The absolute values of two numbers are equal. Their product is -441. What are the numbers? A 21 and -21 B. -49 and 3 C-19 and 19 D. 63 and -7
19. Using the number line, which integer is between - 1 and 7? A. -5 B.-2 C. 0 D. 8
20. Two cars from the same location started to travel at the same time in opposite directions. In 2.5 hours, the car going east has travelled 20km while the car going west covered 26 km. How far are the two cars from one another at that moment? A. 46km B. 26km C. 20km D. 6km
