Answer:
-3g-4
Step-by-step explanation:
(-2g+7)-(g+11)= -2g+7-g-11= -3g-4
Answer:
1.mountains plains rivers
2. A
3.C
4.B
Step-by-step explanation:
yes
Y=-3x+23
distribute -3, get y alone (add 2 to both sides)
Answer:
644 cm^2
Step-by-step explanation:
10*7*2+12*7*2+12*10=140+168+120=428
10*12-3*3=111
428+111=539
8*3*4+3*3=96+9=105
539+105=644