−2y 3 +3y−3y+7y 3 +1+2−5

15y-2

Step-by-step explanation:

Please use parentheses if needed, this has me confused but without them, I solved it.

(-2y)(3)+3y-3y+7y(3)+1+2+5

-6y+3y+-3y+21y+1+2+-5

Combine like terms

(-6y+3y+-3+21y) + (1+2+-5)

15y + -2

Answer again: 15y - 2.

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.