Use proportions because we know that the triangles are similar.

Cross multiply.
20x=28×5
x=7
answer: 7
Answer:
22.5
Step-by-step explanation:
30/4=7.5
7.5 times 3 = 22.5
Mark brainliest plz!
Answer:
84ft
Step-by-step explanation:
The formula to find the area of a parallelogram is b x h.
The base is 14ft and the height is 6ft. Multiply these together.
14 x 6 = 84ft
A bi-millennium means two (bi) times thousand of years (millenium), this means that a bi millennium has 2000 years in it: two thousand years.
The origin of this word is latin: because of this it also has the plural of "bimillennia" <span />
I think that first one represents a function.