What is each expression written using each base only once? (-4)^-6*(-4)^7
a. -4
b. 13
c. 413
d. 1

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

How many verticies does a triangular prims have

Write 37/22 as a decimal rounded to the nearest hundredth.