57+23 = 80
not rounded it's 80.14
Answer:
40 square units
Step-by-step explanation:
First of all, lets say that square has side
, so, the area unit is 
the diagonal's square is 
CALCULATION OF TRIANGLES'S AREA (there are 4 triangles)

CALCULATION OF MAIN SQUARE AREA

TOTAL AREA

Subtract 24 from both sides (-45t=-8) then divide both sides by -45 (t=0.177)
Answer:
the answer to you question is C
Step-by-step explanation:
if this helps lmk and have a brilliant day :D
9.5÷8=1.1875 (distance covered in 0.1 hour)
1.1875 ×10 =11.875