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antonio is a freelance computer programer. in his work, he often uses the power of 2n to find the number of ways bits (or units of information) can be arranged. the n often stands for the number of bits.
antonio is working on programming a new video game called millie's quest. in the game, the main character, millie, collects golden keys to her in her quest. antonio wants to write a formula to show that millie can collect one less key than the highest number of bits that can be arranged in the system. what formula can he use?

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Which math sentence can be used to determine if the triangle is a right triangle?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11