The table shows the cost of various products at a store. image

What expression can be written to represent the cost to buy three t-shirts and one pair of jeans?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

What is the missing justification in the proof of the pythagorean identity below, sin^2x+cos^2x=1, using a right triangle?

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o