<span>f(x)=10x+8
</span>
<span>g(x)=1x+4 = x+4
(f+g)(x) = f(x) + g(x) = 10x+8+x+4 = 11x + 12
</span>
<span>(f+g)(3)= 11(3) + 12 = 33 + 12 = 45
hope that helps
</span>
1> 3 / 4
2> 1 / 2
3> 3 / 5
4> 1 / 5
5> 2 / 3
6> 2 / 3
7> 1 / 4
8> 1 / 3
9> 1 / 2
10> 1 / 3
11> 1 / 3
12> 3 / 5
13> 5 / 6
14> 3 / 5
15> 2 / 5
16> 1 / 6
17> 3 / 5
18> 3 / 4
19> 1 / 3
20> 4 / 5
Note: all of them are the final answer.
you should add two sums to get higher equation that means he took 45 minutes last year that is
42+3=45