Answer:
When you do adding and subtracting with decimals just line up the decimal points and do the math regularly
0.72
-0.7
_____
0.02 meters further so Hector's car traveled farther
0.6
+0.25
0.85 swam in total
Hope this helps
Step-by-step explanation:
85% = 0.85
1-0.85 = 0.15
80 x 0.15 = 12
the price now is $12
√(3x)-2y+7
here √(3x) means, √3×√x
√x = x^(1/2)
now, now the exponent is 1/2, which means it's not a polynomial
