Question

Evaluate 7j + 5 - 8k when j= 0.5 and k= 0.25

Answer 1

3.5 +5 -2

8.5 - 2

= 6.5

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Answer 2

= 7(0.5)+5- 8(0.25)

=3.5+5-2

=8.5-2

=6.5 answer...