Martina needs to make a total of 40 deliveries this week. so far she has completed 12 of them. what percentage of her total deliveries has Martina completed??? pls help

Which of the following is the correct ratio for converting kilograms to grams

This is about circle theorems. someone asap : (

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.