The triangles ABC and ADC are similar.
Therefore
You find a percentage you would change it into a fraction 21/25 and then you would divide the numerator by the denominator 21÷25=.84 you then move the decimal point two digits to the right to express as 84%
1 kg = 0.001 metric tons..so 14327 kg = (14327 * 0.001) = 14.327 metric tons
and if 1 metric tons saves 17 trees....then 14.327 tons saves : 14.327 * 17 = 243.559 saved trees...and since u cant have 0.559 trees, u would round to 243 trees
T + b = 898
t = b - 52
(b - 52) + b = 898
2b - 52 = 898
2b = 898 + 52
2b = 950
b = 950/2
b = 475 <=== cost of the bench (b)
-21/10 or -2&1/10 I used my calculator
