Answer:
ok so we need to find the percent so
8.46 divided by 42.3=0.2
she she tipped 20%
Hope This Helps!!!
Answer:

Step-by-step explanation:
Evaluate 7p + 6(p ÷ q)^2 - 2q (if p = 6 and q = 3)

Hope this helps!
Answer:
m < 
Step-by-step explanation:
Using the discriminant Δ = b² - 4ac
Given a quadratic equation in standard form, y = ax² + bx + c
Then the value of the discriminant determines the nature of the roots
• For 2 real roots then b² - 4ac > 0
Given
y = 3x² + 7x + m ← in standard form
with a = 3, b = 7 and c = m, then
7² - (4 × 3 × m) > 0
49 - 12m > 0 ( subtract 49 from both sides )
- 12m > - 49
Divide both sides by - 12, reversing the symbol as a result of dividing by a negative quantity.
m < 
Answer:
She will get a cheaper price for $120 if she uses 20% off with the 20 dollars off it will be a total of $130
7:3=8:x is like like 7/3=8/x
so 7x=24
24/7=x
x=~3.43