What is the answer to 7x2+6x-1

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get