Triangle ABC with vertices A(9,13), B(12,11) and C(8,7) scale factor: K=2 center of dilation :(11,14)

Through: (-3,-3) parallel to y= 7/3x+3

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?