Each test grade in Sara's science class counts for 1/6 of the final grade. The final exam counts for 1/2. Sara's test scores are 72, 84, and 90. Her final exam score is 90.

What is Sara's final grade for the class?

A) 83

B) 86

C) 87

D) 89,

If cos 35 degrees = 8/X, find X (3sf)

What is the solution to the equation e³x=12 Round your answer to the nearest hundredth.

Identify the information that is needed to solve the problem. Lionel is saving money to buy a new music player. So far he has saved $35 and the player costs $129. He can save $16 per week from his allowance. How much more does Lionel have to save? A.

A rectangular garden is 6 feet long and 4 feet wide. A second rectangular garden has dimensions that are double the dimensions of the first garden. What is the percent of change in perimeter from the first garden to the second garden?

An aquarium tank can hold 6600 liters of water. There are two pipes that can be used to fill the tank. The first pipe alone can fill the tank in 66 minutes. The second pipe can fill the tank in 55 minutes by itself.

What is the value of x in the equation 1.5 (x + 4) - 3 = 4.5 (x - 2) ? 3 4 5 9

3s+6 less than or equal to - 5 (s+2)

I cleaned 6/9 of my room my friend clean 2/9 of my room how much of my room do we still have to clean?

Reduce 3 12/10 into a mixed fraction

A savings account of $5,000 for 12 years, compounded at an annual interest rate of 6%