What's 20 plus 43 I'm doing this for no reason btw

Find the solution for the system of linear equations by substitution: y = x. y = 2x - 4

Choose the correct product of (8x? 4) (8x + 4). 64x2? 16 64x2 + 16 64x2? 64x + 16 64x2 + 64x + 16

Stephanie has $152 in the bank she with drawl $20 then she deposits $84 write an addition expression to represent this situation then find the sum and explain its meaning

After the cataract took Euler's sight, he ... ?

Consider the curve C parametrized by x = - 1 + 7 sin t and y = 1 2 - 7 cos t for - π ≤ t ≤ 5π. Then C is a circle of radius with center (x, y) = (,), and is traversed times in the direction.

When is the greatest common factor of two numbers one of the two numbers? Explain your reasoning

Ashley read 12 books in 16 months. What was her rate of reading in books per month?

Rule: Divide by 2, then add 6. 56, 100, 34, 23 A. 23, 34, 56, 100 B. 23, 56, 34, 100 C. 100, 34, 56, 23 D. 100, 56, 34, 23

Sara was on a cliff 25 feet above sea level. she jumped into the sea and descended a total of 37 feet. how many feet below sea level did she travel? justify your reasoning

The 8th grade student council sold 180 tickets to its pancake breakfast fundraiser. 6 ounces of pancake mix makes enough pancake for 5 people. How many ounces of pancake mix are needed to make pancakes for 180 people?