Nydia flips affair quarter twice. what is the probability that the coin will land on heads both times

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

Which pair of numbers is relatively prime? a. 105 and 128 b. 130 and 273 c. 205 and 350 d. 273 and 333

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?