Find the product : (2p + 3q)(4p +5q) ( 1 ) 6. Find the product : (5m - 6n) (8m+4n) ( 1 ) 7. Find the product : (6m - 2n) (2m+8n) ( 1 ) 8. Find the product : (10m - 8n) (10m+9n) ( 1 ) 9. Find the product : (a – b) (3a + 5b) ( 1 ) 10. Find the product : (5m - 10n) (6m+12n) ( 1 )

I hope this will help you :)

Step-by-step explanation:

(2p+3q)(4p+5q)

=2p(4p+5q)+3q(4p+5q)

=8p^2+10pq+12pq+15q^2

=8p^22pq+15q^2

(5m-6n)(8m+4n)

5m(8m+4n)-6n(8m+4n)

40m^2+20mn-48mn-24n^2

40m^2-28mn-24n^2

(6m-2n)(2m+8n)

6m(2m+8n)-2n(2m+8n)

12m^2+48mn-4mn-16n^2

12mn^2+44mn-16n^2

(10m-8n)(10m+9n)

10m(10m+9n)-8n(10m+9n)

100m^2+90mn-80mn-72n^2

100m^2+10mn-72n^2

(a-b)(3a+5b)

a(3a+5b)-b(3a+5b)

3a^2+5ab-3ab-5b^2

3a^2+2ab-5b^2

(5m-10n)(6m+12n)

5m(6m+12n)-10n(6m+12n)

30m^2+60mn-60mn-120n^2

30m^2-120n^2

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.