Answer:
Option D
Step-by-step explanation:
f(x) = -4x + 2
f(-1) = -4(-1) + 2 = 4 + 2 = 6
Answer:
825
Step-by-step explanation:
Let the number of students who participated in the sport be x, which is equivalent to 0.825
The total number of students in the school is equivalent to 1
Expressing mathematically,we obtain
0.825:x=1:1000

By cross multiplying we obtain,

We finally simplify to arrive at

Hence the number of students who participated in the sport is 825