(1) is C because hydro is water
(2) is C because the mantle is made of mostly Nickel and some other metal I don’t remember
(3) is C because geo is rock
Answer: 18
Step-by-step explanation:
Evaluate 7 r − 15 /s
Given that r = 3 and s = 5
7r - 15/s
Substitute 3 for r and 5 for s in the above expression
7(3) - 15/5
= 21 - 3
= 18
Answer:
B. 
Step-by-step explanation:
Answer:
#1 4) 15 boys to 40 girls #2 1) 1, 3, 4, 6 #3 1) 3/5
Step-by-step explanation:
#1 3:8 Multiply both sides of this ratio by 5 15:40
#2 1, 3, 4, 6 These statements are all true.
#3 9/15 Divide both numbers by 3 3/5
