Bob can draw 3 sketches in 48 minutes what’s his constant speed?

16 per sketch

Step-by-step explanation:

1: divide 48/3 because 48 is the amount of minutes total hes had while 3 is the amount of sketches hes made. This may be wrong I'm sorry I'm really tired if it is wrong.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

jml angle lkj & angle mj = lm