How do I solve 2x-3y=-1 and y=x-1 with substitution?

Find the difference between the roots of the quadratic equation x2-9x+20=0x2-9x+20=0

The amounts spent at a gift shop today are $19,$30,$28,$22,$26, and $26. What is the median and lower quartile?

9y+4=2y+25 how do u get 3

What is the sum of 4/10 and 55/100

A change jar holds 36 nickels, 30 dimes, and 15 quarters. What is the probability that a nickel will be drawn first and then a dime (without replacement) ? A. 40/243 B. 22/27 C. 1/6 D. 1/12

What is the answer for 15 percent of $70

Convert 42 miles to kilometers

A grocery store is offering a promotion where a customer receives a $0.20 discount per item on selected sale items, and Paulo has a coupon where he receives $0.10 off regularly priced items.

What is the equation of the circle with radius, r = 11, and the center at (0, - 7) A. x ^ 2 + (y + 7) ^ 2 = 121 B. (x + 7) ^ 2 + y ^ 2 = 121 C. (x - 7) ^ 2 + y ^ 2 = 11 D. x ^ 2 + (y - 7) ^ 2 = 11

Is intermediate algebra the same as algebra 2?