Advanced Mathematical Decision Thinking Semester 2 Pre-test
19. You charged $658.17 on your new credit card for your college textbooks. Your credit card has
an introductory APR of 6.8% for the first 6 months which gave you a monthly payment of
$111.88. Assuming you managed to pay off the credit card in 6 months, how much of what
you paid back was interest?
A. $11.13
B. $671.28
C. $13.11
D. $680.86

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

The ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm