Haala buys 13 identical shirts and 22 identical ties for £363.01
The cost of a shirt is £15.35
Find the cost of a tie.

  £7.43

Step-by-step explanation:

The total cost is ...

  13s +22t = 363.01

  13(15.35) +22t = 363.01 . . . . fill in the cost of a shirt

  22t = 163.46 . . . . . . . . . . . . . subtract 199.55

  t = 7.43 . . . . . . . . . . . divide by 22

The cost of a tie is £7.43.

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

hi,

the area of abcd is 245.

3*24=230

4*94=1039

2*12=24

add all of them up, you get 2450