If m∠2=x−7 and m∠3=2x. what is the value of m∠3?

Step-by-step explanation:

(x+30) + (x-23) + (2x-7) = 180 degrees

4x = 180

x = 45

m<1 = x+30 = 75 degrees

m<2 = x-23 = 22 degrees

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5