Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.
9
12
a.
3 9
3
4
12
4
b.
قنا
4
9
12
c.
لیا
4
1
12
9
4
d. 4 124
3 9 3
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He expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. if the length is fraction 2 over 3 unit and the width is fraction 1 over 3 unit, what is the perimeter of the rectangle in units? fraction 2 over 3 unit 1 unit 1fraction 2 over 3 units 2 units

Can someone me with my hwplz(only the circled ones)

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)?