Nakeisha's math teacher plots student grades on their weekly quizzes against the number of hours they say they study on the pair of coordinate axes and then draws
the line of best fit. What does the line's y-intercept represent?
100
95
90
85
80
75
Quiz Score
70
o
60
56
50
45
0.5
1
1.5 2
4
5-5
6
2.5 3 3.5 4-55
Time Spent on Homework per Week (hours)

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)] =?

Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. a daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of u grams. the expression 5(3d + 4t + v) describes the mass of 5 bouquets. match each amount in the situation with the expression that represents it. situation expression number of bouquets mass of one bouquet mass of the tulips in one bouquet 4t mass of the daffodils in one bouquet 3d + 4t + v

With alll of except for the 2 that i did already