Why did the scientist create an exact duplicate of himself

What is 7 1/2 - 4 1/4

Solve for y: y + 8 = 2

The ceilings in Roberto's house are 12 feet high. How many meters high are the ceilings?

The standard diameter of a golf ball is 42.67 mm. A golf ball factory does quality control on the golf balls it manufactures. Golf balls are randomly measured to ensure the correct size. If the discrepancy in diameter is more than 0.

What is the product of 2x-4 and 3x2-x+4? Write your answer in standard form. Show your work. Is the product of 2x-4 and 3x2-x+4 equal to the product of 4x-2 and 3x2-x+4? Explain your answer.

Thw average hight of a female giraffe is 4.6 meters. What is her hight in centimeters

An equilateral triangle has a perimeter of 12 x + 18 units. Which expression can be used to show the length of one side of the triangle?

G/4-8 least than or equal to - 10

Three students collected more than $93 washing cars. They used $15 to reimburse their parents for cleaning supplies. Then they divided the remaining money equally. How much did each student earn?

A washer and a dryer cost $800 combined. The washer costs $50 less than the dryer. What is the cost of the dryer?