Answer: Both answers will be
[tex]15x+18[/tex]
Step-by-step explanation:
Since we have given that
Cost of soccer balls = $15
Cost of baseball = $6
Cost of sweat socks = $5
a) Mr. Tonkery bought x number of soccer balls and 3 base balls .
So, our algebraic expression will be
[tex]15x+3\times 6\\\\=15x+18[/tex]
b) Dennis, Eddie and Felix are on a base ball team. They each bought a baseball and x pair of sweat socks .
Since there are 3 members in a base ball team ,
Number of base ball they will purchase is given by
[tex]3\times 6=18[/tex]
Number of sweat socks they will bought is given by
[tex]5\times x\times 3=15x[/tex]
Total number they will purchase is given by
[tex]15x+18[/tex]
Hence, both answers will be
[tex]15x+18[/tex]