Which of the following values of y makes the equation 4y squared - 7y = 15 true?

A) y = - 3

B) y = - 2

C) y = 3

D) y = 4

How many 5/8s does it take to make 15/4

Lucia has collected a set of data and calculated the mode to be 31. The set contains 87 numbers, but Lucia gets an email telling her to add the following 6 numbers to her dаta: {23, 26, 28, 30, 31, 40}

Tom is drawing a map of the block on which he lives, using a scale of 1 inch to 160 feet. The actual length of his block is 1,800 ft. What is the exact length of the block on Tom's map?

A tree harvester estimates the trunk of a tree to have a height of about 38 meters and a base diameter of about 0.62 meter. The wood of the tree has a density of about 520 kilograms per cubic meter. Find the mass of the trunk.

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I am very confused on how to figure out if y = 3/4x is proportional?

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At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.