Dan earns £9.40 per hour. how much will he earn for 7 hours work?

£65.80

Step-by-step explanation:

Dan earned £9.40 per hour.

Therefore, 7 hours work = since it is unknown we can represent it as y

1 hour of work = £9.40

7 hours of work = y

Therefore, we have to Cross multiply

1y = £9.40 × 7

y = (£9.40 ×7)/1

y = £65.80

Therefore for 7 hours of work Dan earned £65.80.

the infinity sign

step-by-step explanation:

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: