Response:
Part a) The price of raisins is $0.8 for each ounce
Part b) 1.25 ounces
Detailed explanation:
The accurate question is
Jackson purchased 5 ounces of raisins costing him $4 dollars.
a) What is the cost per ounce of raisins?
b) How many ounces of raisins could one get for $1?
Part a) What is the cost per ounce of raisins?
It is established that
To calculate the unit price, divide the total expense by the total weight
thus

consequently
The raisins are priced at $0.8 for each ounce
Part b) How many ounces of raisins can be obtained with $1?
It is known that
The raisins are sold at $0.8 per ounce
by using proportions
Determine how many ounces of raisins one can purchase for $1
Let
x -----> the ounces of raisins

Response:
The investment's value after 3 years will be £11,904
Step-by-step explanation:
sarah invests £9600 with an 8% simple interest rate per annum
Duration is 3 years
Formula for simple interest
I = P*n* r
P is the initial investment= 9600
r signifies interest rate = 8% = 0.08
n = duration in years = 3
Now, we can calculate the interest using the formula
I = 9600 * 0.08 * 3= 2304
The interest accrued totals 2,304
Now, we combine the interest with the initial investment to find the investment's total value after 3 years
9600 + 2304= 11904