3/5
3x20/5x20
60/100
60x20/100x20
1200/2000
1200 doctors use brand x
3384 because .88 times 1800 is 1584 and you have to add that to 1800 making it 3384 (or the questions is really easy and its just 1800.88)
4<span>(9<span>a2</span>−6a+1<span>)
Answer:</span></span>4<span><span><span>(3a−1)</span>2</span><span>4<span><span>(3a-1)</span>2</span></span></span>
15p+15p+25p=30p+25p=55p
