How many ounces each of 10% hydrochloric acid and 30% hydrochloric acid should be mixed to obtain 20 oz of solution that is 22.5% hydrochloric acid?

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much