Answer:
1.)24
2.)12
3.)15
Step-by-step explanation:
1.)2a+3b
if a=6 , b=4. then
2(6)+3(4)
12+12
=24
2.)a+2b+c
if a=6 , b=4 , c=-2
6+2(4)+-2
6+8+(-2)
14+(-2)
=12
3.)3a-2b+5
if a=6 , b=4.
3(6)-2(4)+5
18-8+5
10+5
=15
substitute lang yung number sa letter
hope it helps <33
