The balance scale shows the equation 2x + 3 = 2y + 5. Which equation can be used to calculate x?
x = y + 2
x=y-2
x = y + 1
x = y -1

Dilations map circles to circles and ellipses to ellipses with the same. true or false

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out