Answer:85.5
Step-by-step explanation:
Answer:
-x^2-15xy-50y^2+14y
let the all readers be x
8%=20×100%÷x
8%x=2000%
x=2000%÷8%
x=250
40 unit^2.
Area = 1/2 * base * altitude
= 1/2 * 8 * 10
= 40 unit^2.
10.5