30% of 40 = 0.30(40) = 12......so 12 tables seat 4 people per table = 12 x 4 = 48 seats.......tables remaining seat 22 people (22 seats).
48 + 22 = 70 seats total
Answer:
A
Step-by-step explanation:
In the figure shown, ABC is a right triangle with side lengths a, b, and c, and CD is an altitude to side AB. This altitude divides the triangle into two right triangles ADC and BDC. In these triangles,
So,

1. From the similarity
you have

2. From the similarity
you have

Hence, option A is true
Last one :) djsjsjdndnwjdjnd
Answer:
First subtract 7 from each side of the equation
Step-by-step explanation:
2x+7 = 13
First subtract 7 from each side of the equation
2x+7 -7 = 13-7
2x = 6
Next divide each side by 2
2x/2 = 6/2
x=3