2. Helen can type 120 words in 4 minutes. How many words can she type in 6 minutes? *
A 30 words
B 240 words
C 480 words
D 180 words

This is about circle theorems. someone asap : (

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.