75/15=90/x
75x=90*15
75x=1350
x=1350/75
x=18
she needed to study 18 hrs to get a 90
Answer:
193
Step-by-step explanation:
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
3+1 can be simplified to 4
6 times 9 is 54
(4)(54)-23
216-23
193
Answer:
Just getting points i hope u find the answer tho :))
Step-by-step explanation:
Answer:
It would be 6
Step-by-step explanation: