Two percent of jennies skin cells were burned when she escaped from a fire. if 
3.7×10^10 of her skin cells were burned then, how many skin cells were not burned

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

unless if u could do my questions, if not i wouldn't want to