You budget $200 for wooden planks for outdoor furniture. cedar costs $2.50 per foot in pine costs $1.75 per foot. x equal the number of feet of seater and let y equals the number of feet of pipe. what is an any quality that shows how much of each type of wood can be bought?

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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)?