Answer:
x=13 feet
Step-by-step explanation:
A ramp is between 1.96 and 1.80 feet, we will take 1.96
and R(x)=1.96 feet: we apply quadratic formula; 
, where a=-0.05, b=0.8 and c=-1.96, so
solving 
; we take the highest value of x, x=13
Answer:
196
Step-by-step explanation:
14 x 2 +14 x 3 + 14 x 8 + 14
The expression would be 45 + 3w
you already have 45 so that will be added and 3 w is for 3 dollars per week
4 weeks: 45 + 3x4= $57
10 weeks: 45 + 3x10= $75
20 weeks: 45 + 3x20= $105
