Answer:
b = 70
Step-by-step explanation:
7+3/5b=7/10b
Subtract 3/5 b from each side
7+3/5b - 3/5 b=7/10b - 3/5 b
7 = 7/10 b - 3/5 b
We need to get a common denominator or 10 on the right hand side
7 = 7/10 b -3/5 *2/2 b
7 = 7/10b - 6/10 b
7 = 1/10 b
Multiply each side by 10
7*10 = 1/10 * 10 b
70 = b
a=1.29 approx
H1 H2 H3 TH TT
17
-(-17)=-1*-1*17=1*17=17
The length is 6
