1. write an expression with a value of 12. it should contain four numbers and two different operations.

2. place parentheses, if needed, to make each statement true.

1. 7 + 3 x 2 + 4= 25

2. 8 (a two above the 8) divided by 4 x 8 = 2

3. 16 + 8 - 5 x 2 = 14

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.