Identify the total earnings and the number of days.

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Here are the solutions to the math problems:

1. Ama earns GH¢150.00 in 5 days. What is her pay per day?

Identify the total earnings and the number of days.
Total earnings = GH¢150.00
Number of days = 5 days
Calculate the pay per day by dividing total earnings by the number of days.
$\text{Pay per day} = \frac{\text{Total earnings}}{\text{Number of days}}$ $\text{Pay per day} = \frac{\text{GH¢}150.00}{5 \text{ days}}$
Perform the division.
$\text{Pay per day} = \text{GH¢}30.00/\text{day}$
Ama's pay per day is $\boxed{\text{GH¢}30.00}$ .

2. A tap fills 8 litres of water per minute. How many litres can it fill in 6 minutes?
Identify the filling rate and the time.
Filling rate = 8 litres/minute
Time = 6 minutes
Calculate the total volume filled by multiplying the rate by the time.
$\text{Total litres} = \text{Filling rate} \times \text{Time}$ $\text{Total litres} = 8 \text{ litres/minute} \times 6 \text{ minutes}$
Perform the multiplication.
$\text{Total litres} = 48 \text{ litres}$
The tap can fill $\boxed{48 \text{ litres}}$ in 6 minutes.

3. The speed of a car is 90 km/h. How far can the car move in 4 hours travelling at the same rate?
Identify the speed and the time.
Speed = 90 km/h
Time = 4 hours
Calculate the distance using the formula
Distance = Speed $\times$ Time.
$\text{Distance} = \text{Speed} \times \text{Time}$ $\text{Distance} = 90 \text{ km/h} \times 4 \text{ hours}$
Perform the multiplication.
$\text{Distance} = 360 \text{ km}$
The car can move $\boxed{360 \text{ km}}$ in 4 hours.

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