Trigonometry question. PLEASE HELP WILL GIVE LOTS OF POINTS

Average acceleration: i have no idea how to do this.

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent

Adeposit of 5500 at 6% for 3 years equals