Answer:
20 pens
Step-by-step explanation:
if there is 1 red pen for every 4 blue pens
then
4 red pens would have 16 blue pens with it. makes a total of 20 pens, with 12 more blue pens than red pens
Answer:
4y+7
Step-by-step explanation:
there is no way of knowing what y is
Answer:
10
Step-by-step explanation:
braniyest pls
Answer:
C
Step-by-step explanation:
Using the rule of radicals
×
⇔ 
Simplifying each radical before combining them.

=
=
×
= 3
-----------------------------------------------------------------------------

= 
=
×
= 5
---------------------------------------------------------------------------
Hence
2(3
) - 3(5
= 6
- 15
= - 9
→ C