Ihave to write these as algebraic expression. #1. t decreased by 13 is less than 21? #2. the product of c and 5 is equal to 5? #3. 9 to the n?

1. t - 13 < 21

2. 5c = 5

3. 9^n

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

The length of what is left would be 1 1/2 feet long.