Answer:
5 shirts
Step-by-step explanation:
2 pairs of jeans $25.60
$112.40-$25.60=$86.80
if each pair of T-shirts cost $15.30
$15.30 times 5=$76.50
$86.80 - $76.50=$10.30
so John bought 5 shirts however he got some many left $10.30
Replace the x in 7x by (3x + 1):-
(f o g)(x) = 7 * (3x + 1)
= 21x + 7 which is choice D.
a=12
7a+18=102
7a=102-18
7a=84
a=84/7
a=12 <----- answer
154
42/3=14
14*11=154