If the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh 2500 grams

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

What other information do you need to prove triangle dac=bca by asa

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.