Evaluate the expression 3a +2b - 5c when a = 4, b = 3 and c = 2.

a. 28 b.18 c.8 d.-8

Answer: c. 8

Solution:

3a + 2b - 5c

= 3(4) + 2(3) - 5(2)

= 12 + 6 - 10

= 18 - 10

= 8

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Solution:

3a +2b - 5c

=3(4)+2(3)-5(2)

=12+6-10

=18-10

=8

answer:

c. 8