Violet finds some nickels and pennies under the couch cushions. How much money (in dollars) does she have if she has 140 nickels and 70 pennies? How much money (in dollars) does she have if she has xx nickels and yy pennies? Total value, 140 nickels and 70 pennies (dollars):

Total value, xx nickels and yy pennies (dollars):

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?