There were 7 roses in the vase. Melanie cut some more roses from her flower garden. There are now 12 roses in the vase. How many roses did she cut?

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)

Of the following, which statement or statements accurately reflect a way in which credit can be safer than cash? i. if your credit card gets stolen, you can cancel it and get your money back. ii. it is harder to lose a single credit card than a large number of bills. iii. if a merchant does not honor the agreement, you can call the credit company and dispute the charges. a. i and iii b. ii only c. iii only d. i, ii, and iii

Factor these polynomials and explain how 1. 12x - 3x^2 2. 20 - 240x^2