Rolf spent 15 years last week practicing his saxophone. If 3/10 of the time was spent practicing warm ups routines, how much time did he spend practicing warm up routines?

the correct answer is a.) bc< mn 5 stars if this you : )

step-by-step explanation:

answer: sensy

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

32

step-by-step explanation: