Yolanda has scored 73, 90, and 58 on her previous three tests. what score does she need on her next test so that her average (mean) is 72?

67%

Step-by-step explanation:

If you take 73+90+58 then divide it by 3, you get around 73.6 percent. So would have to score 67 percent on the test to get a mean of 72 percent.

73 + 90 + 58 + 67 divided by 4 = 72%.

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4