Answer:
13x^2-4
Step-by-step explanation:
(5x^2-3)+(8x^2-1)=
5x^2+8x^2-3-1=
13x^2-4
Answer: 8 pound
Step-by-step explanation: 8 × 1 = 8pound
Answer:
+3
Step-by-step explanation:
if your subtracting a negitive it means your adding and its now a positive
3:4,5:2.4 2.4/4*5= 3 (8/4= 2 2*5=10) and 3/2*3= 4,5 (10/2*3=15)
