(-7) negative 7 i had some of these questions in pre-algrebra
JD
18x-8x2=0
Two solutions were found :
x = 9/4 = 2.250
x = 0
Step by step solution :
Step 1 :
Equation at the end of step 1 :
18x - 23x2 = 0
B & C since both of them are like triangle figures.
Answer:
Hey there!
She wants an 93, so we write the equation: 
Multiply both sides by 6 to get: 
Simplify: 463+x=558
Subtract 463 to get that x=95.
Thus, she must score a 95 to get a A as a final grade.
Hope this helps :)