The last option d is the answer
Answer:
1) -16
2) +3
Step-by-step explanation:
1) below represents negative sign
2) increase means posivie sign
There are 105 in 6th grade because there are 75 boys right? So it said the ratio of girls is 7 and the ratio of boys is 5 so I divided 75 to 5 = 15 and I multiply 7 to 15 and got 105 girls.
Positive 18, going off the assumption that the tick 2 spaces away from -1 is positive 9.
