monique's teacher asked her to add pure acid to 8 gallons of a 32% acid solution to make a solution that is 70% acid. how much pure acid should monique add?

Alex determined that his average speed when he commuted to work is 35 miles per hour. what conversion factor can be used to convert this speed to feet per hour?

Abag contains even and odd numbered balls in the ratio of 3: 7, respectively. for each of the following, what is the probability of drawing an even-numbered ball? the total number of balls is 240 and 30 of the odd-numbered balls are renumbered by multiplying the numbers by 4.

What happens to the crust at the divergent boundary when continental crust divides from continental crust