Question 7= to work out 19% work out 1% and 20%. 25.00 1%= 0.25 10%= 2.5 so, 20% = 5 (2.5*2) 20%-1% = 19%. 5-0.25 = 4.75 = discount £25-£4.75 =20.25
Answer:
See pic below.
Step-by-step explanation:
Hello.
To answer this question, follow the order of operations.
10-7(3+2)7²
10-7·5·7²
10-7·5·49
10-35·49
10-1715
-1705
Wat is help sheet, didn't help,
instructions unclear, got my calculator stuck in the ceiling fan
remember some simple exponential laws
and
first one
2nd one
third one
dunno wat to do with 'help sheet'