Evaluate each expression. Express your answer to no more than three decimal places.

a) 3.5 + 16 - 2.5^2
b) 4.2 X √ 3 X 5 + 1 X 9.8
c) 6 X 9.5 - 10.6 ÷ 2 + 1.5 X 3.6
d) (7.3^3 - √ 3 X 5 + 7 ^2)^2

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.

Standard deviation of 19,29,21,22,23

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.