A mobile phone costs £5 per mon plus per minute for calls Show that 150 minutes of calls costs £11

b) Write down a formula for the monthly cost. C. form minutes of phone calls.

c) A phone bill is £9.80
How many minutes of calls were made​

if x decreases by 4 then y increases by 10

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.

19

step-by-step explanation: