7. All waves interact with materials in
ways
(a, unpredicatable
b. predictable
c. random
d. unique
What is the answer

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

the answers are in the images, i received 100% on this assignment. hope this !

i think it might be a but you might want a second opinion

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: