21/3 × 2 5/8 perform the indicated operation

-6 1/8

Step-by-step explanation:

=-7/3 *21/8

=147/24

=-6 3/24

=-6 1/8

-49/8

Step-by-step explanation:

Convert both numbers to improper fractions:

-7/3 times 21/8.                                            (-7)(21)

Now multiply these together, obtaining

                                                                        3(8)

Reducing this, we get:

(-7)(7)       49

= -

    8           8

they used 313 gallons of paint

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b