Math 7 grade 7

can anyone me answer these math questions right away?

1. to determine what park visitors like, every tenth visitor is surveyed at the park entrance. out of 180 visitors, 22% said they would like to have more walking paths. the park manager concludes that about one-fifth of all park visitors would like to have more walking paths.

is this conclusion valid?

what type of survey is this?
simple random sample voluntary response sample convenience sample systematic random sample

2. which type of data display would be best for showing how the height of a plant changes each week during a science experiment?

stem-and-leaf plot
bar graph
line graph
line plot

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Consider the following function. which of the following graphs corresponds to the given function? w. x. y. z. a. z b. y c. x d.

Consider the following geometry problems in 3-space enter t or f depending on whether the statement is true or false. (you must enter t or f -- true and false will not work.) f equation editorequation editor 1. a plane and a line either intersect or are parallel t equation editorequation editor 2. two planes parallel to a third plane are parallel f equation editorequation editor 3. two lines either intersect or are parallel f equation editorequation editor 4. two planes orthogonal to a third plane are parallel f equation editorequation editor 5. two planes orthogonal to a line are parallel f equation editorequation editor 6. two planes either intersect or are parallel f equation editorequation editor 7. two lines orthogonal to a third line are parallel t equation editorequation editor 8. two lines parallel to a third line are parallel t equation editorequation editor 9. two planes parallel to a line are parallel f equation editorequation editor 10. two lines parallel to a plane are parallel f equation editorequation editor 11. two lines orthogonal to a plane are parallel