James bought 5 baseball cards at a garage sale for $0.65 each. he sold them to a collector for $2.25 each. what was his profit?
(1 point)$3.25
$8.00
$11.25
$14.50

10.

what is 0.000750 in scientific notation?
(1 point)75 × 10–4
7.5 × 10–3
7.5 × 10–4
7.5 × 10–5

11.

what is thirty-one over five written as a decimal?
(1 point)1.6
6.1
6.2
6.5

12.

the table below shows the populations of four countries for the year 2006 expressed in scientific notation.

population in 2006

country

population

lebanon 3.90 × 106
mexico 1.08 × 108
peru 2.84 × 107
spain 45.5 × 106

of the countries listed, which one had the largest population in 2006?
(1 point)lebanon
mexico
peru
spain

13.

what is 2.28 × 10–8 in standard form?
(1 point)228,000,000
22,800,000
0.228
0.228

b

step-by-step explanation:

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is