23) 17/30
41) 3/10 because 3/10 + 7/10 = 10/10 or 1.
B- $7.50. Take 30 and divide it by 4, and you get your weekly subscription cost.
17/21 you just have to find the highest common factor, which in this case, is two
Answer:
Step-by-step explanation:
you have a right triangle,
a^2+b^2=c^2
10^2=4^2+b^2
100=16+b^2
100-16=b^2
84=b^2
b=9.16
