Factor completely.
15a² + 55a - 20
a. 5(3a² + 11a - 4)
b. 5(a + 4)(3a - 1)
c. (5a + 2)(3a - 10)
d. (5a + 4)(3a - 5)

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Need solving this 2nd limit problem.