Tell how many solutions each equation would have: one solution, no solutions, or infinitely many solutions. Give a justification for your answer. 5(-2x+7)+3=-10x+38

Infinitely many solutions

Step-by-step explanation:

Infinitely many solutions because no matter what you put in for x the equations will always be true

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

the correct answer is 828.07