☺
4 t-shirts and a hat costs £26.00
A t-shirt and a hat costs £8.00.
How much does a t-shirt cost?
How much does a hat cost?
t-shirt: £
hat: £

Cost of t-shirt is £6 and hat is £2 respectively.

Step-by-step explanation:

4x + y = 26 (1)

x + y = 8 (2)

Subtract (2) from (1)

⇒ 3x = 18

∴ x = 6

6 + y = 8

∴ y = 2

⇒ Cost of t-shirt is £6 and hat is £2

answer: do you still need this?

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.