How many obtuse angles are there in a star?

Jasmine has 50 marbles in a bag. 20 percent of the marbles are blue. How many marbles are blue? What are example of point of intersection? What is one sixth of 239 700? How does s cell get it's 4 main elements? What is -8.17 as a fraction? What is the abstract noun from silly? How many times does the word forget appear in the bible? What are the numbers called in addition problems? How do you write 54 thousandths decimals in a expanded form? What is 0.122 to the nearest tenth? What is the cost of 750g at 48p per half kg? How much is 36 hrs? What is a 3-dimensional shape with 4 faces? What number is divisible by 20 and 32? How many vertices in a pentagon? Are the ratios 23 and 46 equivalent? What is another word for totted up? What is the greatest seven-digit number using four different digits? What is the formula used to find percent of change? What cities zip code has the first five digits of Pi?