The volume of a cylinder is
Volume = π (radius)² (length or height)
Volume = π (4 cm)² (15 cm) = 240 π cm³ = 753.98 cm³
They need to babysit for 10 hours to have same money each day.
Step-by-step explanation:
On Thursday;
Charges = $3 per hour
Initial fee = $40
let x be the number of hours.
T(x) = 3x+40
On Friday;
Charges = $4 per hour
Initial fee = $30
F(x)= 4x+30
The cost will be same when;
T(x) = F(x)

They need to babysit for 10 hours to have same money each day.
Keywords: functions, addition
Learn more about functions at:
#LearnwithBrainly
161.5 because. 85×190=161.5
~JZ
It loses its negative sign.