Variables x and y are in direct proportion, and y = 12.5 when x = 25. if x = 40, then y = a) 20 b) 28.5 c) 52.5 d) 65 will mark brainiest

A.) 20

Step-by-step explanation:

(40/25)*12.5=20

Hope this helps.

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: