Add: (3x4 + x2 + 2) + (9x4 - x2 + x)

A. 12x8 + x + 2

B. 12x8 + x4 + x + 2

C. 27x4 - x2 + x + 2

D. 12x4 + x + 2

Subtract: (3x2 - x - 5) - (x + 2)

A. 3x2 - x - 3

B. 3x2 - 2x - 7

C. 3x2 - 3

What is the boundary between cold and warm air masses

What is the probability that a red or green marble will be selected from a bag containing 9 red marbles, 7 green marbles, and 11 yellow marbles if one is selected randomly?

Factorise this expression as fully as possible 14t^3 x 6t

A circular roller derby ring has a diameter of 95 feet. If a roller derby player skates five laps around the rink, how far has she traveled?

Which is greater, F (-2) or G (-2)

A library has 800 books and is adding 500 more books each year which is linear or exponential

Stodoła składa się z 1259 cegieł. Druga stodoła ma o 347 cegieł mniej. Trzecia ma o 567 cegieł więcej od pierwszej stodoły a czwarta stodoła ma o 490 cegieł więcej niż druga stodoła. Z ilu cegieł składa się druga, trzecia i czwarta stodoła

Give several reasons why you might prefer to record your cell counts in scientific notation instead of standard notation

7. A school field trip has 1,125 students divided between 15 busses. How many students are on each bus? orange, ze hang

Complete. What is the Original Price? Original Price:? Percent of Discount: 80% Sale Price: $90