2x-4(x-1)=104x+1/2(8x+6)=2(4x+3)6x+ 8=12x+43x+5=2x+12(x+4)=2x+5i have 12 problems these are just the first 5

2x-4(x-1)=10 answer is X= -3

4x+1/2(8x+6)=2(4x+3)  is No solution

6x+8=12x+4  is x= 2/3

3x+5=2x+1   is x= -4

2(x+4)=2x+5   is no solution

we need to divide the number of toy dinosaurs, 156, by the number of brothers, 4:

in order to estimate, we can use compatible numbers:

156 ÷ 4

  ↓

160   ÷ 4 = 40        

the correct answer is a).

answer by jkismyhusbandbae:

a) how close a measured value is to the actual (true) value.

  measure of length.   there are 12 inches in a foot, and 36 inches in a yard.   one inch is exactly 2.54 centimeters.

accuracy is how close something is to an actual answer but it is not exactly correct.