Answer:
400 ways
Step-by-step explanation:
Times 10 x 10 x 2 x 2 to get your answer
The GCF of 180 and 240 is 60
Prime number is a whole number that has no possible divisors that 1 and itself. Prime numbers are 2, 3, 5.7.11,13,17,19,23 and 29. From 1 to 10 there are 3 prime numbers: 3,5 and 7.
The probability can be calculated as the ratio between the number of "good" events and the total number of possible events. There are three "good" events (3,5 or 7) and 10 total events, so the probability that the spinner lands on a prime number is: 3/10. So, none of the given options is true.
Step-by-step explanation:
a)

b)
