Answer: a.) -1 2/3
explanation: -2 1/6 - 1 1/4= -13/6 - 5/4= -41/12 ; 1 3/4= 7/4 ; -41/12 + 7/4= -5/3 ; -5/3= -1 2/3
A rectangle. It has four 90 degree angles.
Answer:
100/9
Step-by-step explanation:
An exponent outside parentheses applies to each factor inside parentheses. Anything (except 0) to the 0 power is 1. Identical numerator and denominator factors cancel in the usual way.

On all sides of a triangle it’s about 7 inches