C. 38 / 38
ExplanationStep 1: To find function value put 4 in place of x. Step 2: f(4)=9×4+2=38. Step 3: After substitution do multiplication first.
Step 1: Function value के लिए x की जगह 4 रखें। Step 2: f(4)=9×4+2=38 है। Step 3: Substitute करने के बाद multiplication पहले करें।
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