#1
x-7>10
x>10 + 7
x>17
#2
3x <= 21
x <= 21/3
x<= 7
#3
5a - 2<18
5a < 18 + 2
5a <20
a <20/5
a<4
#4
2t + 8 >= -4(t +1)
2t +8>= -4t -4
2t + 4t >= -4 - 8
6t >= -12
t>= -12/6
t>= -2
Answer: B. 20
Step-by-step explanation: 1/5 of 25 is 5 and 5 of those are red so 25-5=20
Answer: y =21
Step-by-step explanati
