3. Consider the expression 9 + 3 x 4 - 1.4

(a) What is the value of the expression? Show your work.

(b) Show where to place grouping symbols so that the value of the expression is 45. Show how the value of
the expression changes to 45.

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr