Step-by-step explanation:
5×4=20. 20×9=180
+
9×4=36. 36/9=4
180+4=184
answer=184
when a number is next to a letter it mean to multiply
and / means to divide
Answer:
47.
Step-by-step explanation:
1) the rule:

where a;b are 0 and 12, f(x)=x²-1.
2) according to the rule above:

Answer:
2 3/10, 2.59, 24
Step-by-step explanation:
T=90-Z
Because 9 solved correctly*10 points per question answered correctly=90 and each incorrect question is a point lost
To write 0.1 as a percentage you have to multiply it by 100 and then put the % sign at the end of it.
0.1 X 100 = 10%