What is the value of x in the equation shown below? 0.25x + 7 = 4(x - 2)

Only 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, . , -, and / are allowed in your answer.
Answers that are mixed numbers must be entered as an improper fraction or
decimal.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)