Question

if a =19 then what is 6a+90

Answer 1

if
$a = 19 \\ 6a \: = 6 \times 19 = 114 \\ 6a + 90 = 114 + 90 \\ = 204$
hope it helps

Answer 2

Answer:

6a+90

6(19)+90

114+90=204