y2-y1 / x2-x1
7-3 / 4-1
4/3
1 & 1/3 should be correct
Well 3 to the 5th power is 243 and 5 to the 3rd power is 125 and 243-125 is 118
BC must be equal to AD, so 4x+5=-3x+26. You must get all common terms on one side, so 7x=21. then divide to get x alone, and x=3.
The insurance Gil has is most likely individual life insurance.
Answer:
93
Step-by-step explanation:
The average is calculated as
average = 
On 3 quizzes
= 73 ( multiply both sides by 3 )
sum = 219
On 4 quizzes, letting x be the score on fourth test
= 78 ( multiply both sides by 4 )
sum + x = 312 , that is
219 + x = 312 ( subtract 219 from both sides )
x = 93
She must score 93 on the next quiz