Electrical service cost $8 per month plus $0.10 per kilowatt-hour of electricity used

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.

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8

Luisa sells stuffed animals. she sells her stuffed elephant for $34.90, and the sales tax is 6% of the sale price. about how much is the sales tax on the elephant?