The dimensions of a triangular lot are 142 feet by 67 feet by 141 feet. if the price of such land is $3 per square foot, how much does the lot cost?

Answer this question, only if you know the answer. 30 points and brainliest!

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap