How many solutions does this linear system have?

y = 2x-5

-8x - 4y = - 20

O one solution: (-2,5,0)

O one solution: (2.5, 0)

O no solution

infinite number of solutions

What is the volume of a cylinder? Give an informal argument for the formula.

8) Lucy is 48 inches tall. Charlie is x inches taller. Which expression represents Charlie's height? A 48x B 48 + x C 48 - x D 48/x

Tom saves 35% of his salary. Jerry spends 3/5 of his salary and saves rthe rest of his salary work out who saves the most money each month you must show your working.

Simplify the expression 11 (3p + 5x) + 4x - x

What is 70 divided by 4.760?

What is 6.3 : (6.03)

Need steps to solve this problem 5e+8f + (-2) e-12f

You drive 70 miles per hour but then slow your speed by 15 miles per hour. you then return to your speed of 70 miles per hour. which expression shows how your speed changed?

Given r = 8 and ø=1.85pi, find the Cartesian coordinates. Check your answer. a. (7.13, - 3.63) C. (-7.08, 3.67) b. (7.08, - 3.67) d. (-7.80, - 3.67)

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The solution set of n2 - 14n = - 45 is [ ]