6. A freight truck has 1/5 ton of computers, 2/3 ton of televisions, and 3/4 ton of small appliances. Find the total weight of its load. Show the work.

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

When y’all answer can y’all explain too !

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.