The robber stole 280 dollars' worth of one-dollar bills. he also stole some 100-dollar bills, 50-dollar bills, and 20-dollar bills. which expression could represent the amount of money that was stolen? a) 280(100x+50y+20z) b) 100x+50y+20z-280 c) 280x+170 d) 170x+280170x+280 e) 100x+50y+20z+280

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class