12a
math: 68/85 * 100 = 80%
science: 70*0.9 = 63 number correct
b. Science
c.48
Answer:
x ≈ 11.7
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos26° =
=
( multiply both sides by 13 )
13 × cos26° = x , then
x ≈ 11.7 ( to the nearest tenth )
The answer is (-5,18)
And you can also use desmos for this type of questions
the initial statement is:

and then:

So the second statement is false because f should be multiply by e, not by d so is option C)