Answer:
13
Step-by-step explanation:
[tex]--› \: \: \:3x + \frac{1}{4} {y}^{2} [/tex]
Insert values
[tex]--› \: 3(3) + \frac{1}{4} {4}^{2} [/tex]
multiply 3 by 3
[tex]--› \: 9 + \frac{1}{4} {4}^{2} [/tex]
follow PEDMAS of operation
Calculate exponents 4[tex]{}^{2}[/tex]
[tex]--› \:9 + \frac{1}{4} \times 16[/tex]
divide 16 by 4
[tex]--› \: 9 + 4[/tex]
add 9 to 4
[tex]--› \: 13[/tex]
