Question

What is the sign of the answer?

(2.9) ∙ (–5) ∙ (0.7) ∙ (18) ∙ (–3)
a. positive
b. negative

Answer 1

The answer is positive

Answer 2

Rules:

`- * - =+`

`+ * +=+`

`- *+ =-`

`+ * -= -`

Solution:

`(2.9)*(-5)*(0.7)*(18)*(-3)`

`(-14.5)*0.7*18*(-3)`

`(-10.15)*18*(-3)`

`(-182.7)* (-3)`

`548.1`
The answer is: 548.1 ⇒a. positive