Write and evaluate an expression to find the number of band members in each formation. there 75 in the band

4. One part of the formation has eight rows with five band members per row. The other part has four rows with seven members in each row.

5. One part of the formation has three rows with thirteen band members per row. The other part has six rows with six members in each row.

6. 'One part of the formation has seven rows with seven band members per row. Another part of the formation has four rows with four members in each row. The last part has three rows with three members in each row.​

you'll just earn points here

step-by-step explanation:

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true

the value of x is 28.2