Answer:
The estimate is 390 while the real product is 385
estimate - 400
product - 385
Step-by-step explanation:
estimate - 77 rounds up to 80
80*5=400
product - 70*5=350
7*5=35
350+35=385
answer
7 +6
1 x 60, 2 x 30, 3 x 20, 4 x 15, 5 x 12, 6 x 10, 10 x 6, 12 x 5, 15 x 4, 20 x 3, 30 x 2, 60 x 1 = 60
(a) show all sides to be congruent
A -(27x + 7)
B -(15x + 8 )
C -9(2x + 1 )
-1/2 (30x + 16) = -15x-8
