please help! at a recent cross country meet, spectators had to pay to get in. it cost $7 for adults and $3 for students. the booster club selling tickets let's forgot to keep track of how many adults and student tickets they sold. however, they did know they sold 155 total tickets and made $645. write a system of equations to model this situation

Which statement justifies why angle ebc measures 90?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

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