Answer:
Step-by-step explanation:
Sum a with a-s ;b with b-s so:
0.75a + 10b + a – 2b=0.75a+a+10b-2b=1.75a+8b
-7 times 6 equals -42
12-2n
Difference means to subtract
Times means to multiply
A number would be the variable
There would be an overall 25% decrease
Because -75 + 50 = -25
4.5 lbs
just divide 11.25 by 2.5
