3. A box contains 35 pens; 8 are red, 15 are black and the rest are blue. a) How many blue pens are there in the box?
b) If a pen is chosen at random what is the probability the
i) a red pen ii) a black pen iii) a blue pen?
pen is:

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?