Which equation means seven times a number is equal to 21?
a. 21 7 = n
b. 7 × 21 = n
c. 7 n = 21
d. 7 × n = 21

The correct option would be D because 7 times a number (n) equals 21

All points to the left of zero on a horizontal number line are negative. a number line is a picture of a graduated straight line that serves as abstraction for real numbers. this number line can be extended to the left to represent numbers which are smaller than 0. such numbers are called negative numbersmark me brainliest