Hector is performing a chemistry experiment that requires 160 milliliters of 40% sulfuric acid solution.
He has a 25% sulfuric acid solution and a 50%
sulfuric acid solution. How many milliliters of each
solution should he mix to obtain the needed solution?
(4 pts)

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?