There are 10 marbles in a bag: 5 red, and 5 blue. Sue draws a marble from the bag at random. The marble is red. She puts the marble back into the bag . What is the probability that the next marble she draws at random is red?​

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?